# Copyright 2023-present Daniel Han-Chen & the Unsloth team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from unsloth_zoo.utils import Version
from importlib.metadata import version as importlib_version
from unsloth_zoo.hf_utils import dtype_from_config, HAS_TORCH_DTYPE
from unsloth_zoo.llama_cpp import (
    convert_to_gguf,
    quantize_gguf,
    use_local_gguf,
    install_llama_cpp,
    check_llama_cpp,
    _download_convert_hf_to_gguf,
)
from bitsandbytes.nn import Linear4bit as Bnb_Linear4bit
from peft.tuners.lora import Linear4bit as Peft_Linear4bit
from peft.tuners.lora import Linear as Peft_Linear
from typing import Optional, Callable, Union, List
import sys
import requests
import torch
import os
import shutil
import pickle
import gc
from transformers.models.llama.modeling_llama import logger
from .kernels import fast_dequantize, QUANT_STATE, get_lora_parameters_bias
import subprocess
import psutil
import re
from transformers.models.llama.modeling_llama import logger
from .tokenizer_utils import fix_sentencepiece_gguf
from .models.loader_utils import get_model_name
from .models._utils import _convert_torchao_model
from .ollama_template_mappers import OLLAMA_TEMPLATES, MODEL_TO_OLLAMA_TEMPLATE_MAPPER
from transformers import ProcessorMixin
from huggingface_hub import HfApi

try:
    from huggingface_hub import get_token
except:
    try:
        from huggingface_hub.utils import get_token
    except:
        # For older versions of huggingface_hub
        from huggingface_hub.utils._token import get_token
from pathlib import Path
from peft import PeftModelForCausalLM, PeftModel

__all__ = [
    "print_quantization_methods",
    "unsloth_save_model",
    "save_to_gguf",
    "patch_saving_functions",
    "create_huggingface_repo",
]

# llama.cpp specific targets - all takes 90s. Below takes 60s
LLAMA_CPP_TARGETS = [
    "llama-quantize",
    "llama-export-lora",
    "llama-cli",
]

# Check environments
keynames = "\n" + "\n".join(os.environ.keys())
IS_COLAB_ENVIRONMENT = "\nCOLAB_" in keynames
IS_KAGGLE_ENVIRONMENT = "\nKAGGLE_" in keynames
KAGGLE_TMP = "/tmp"
del keynames

# Weights
LLAMA_WEIGHTS = (
    "self_attn.q_proj",
    "self_attn.k_proj",
    "self_attn.v_proj",
    "self_attn.o_proj",
    "mlp.gate_proj",
    "mlp.up_proj",
    "mlp.down_proj",
)
LLAMA_LAYERNORMS = (
    "input_layernorm",
    "post_attention_layernorm",
    "pre_feedforward_layernorm",
    "post_feedforward_layernorm",
    "self_attn.q_norm",
    "self_attn.k_norm",
)

# https://github.com/ggerganov/llama.cpp/blob/master/examples/quantize/quantize.cpp#L19
# From https://mlabonne.github.io/blog/posts/Quantize_Llama_2_models_using_ggml.html
ALLOWED_QUANTS = {
    "not_quantized": "Recommended. Fast conversion. Slow inference, big files.",
    "fast_quantized": "Recommended. Fast conversion. OK inference, OK file size.",
    "quantized": "Recommended. Slow conversion. Fast inference, small files.",
    "f32": "Not recommended. Retains 100% accuracy, but super slow and memory hungry.",
    "bf16": "Bfloat16 - Fastest conversion + retains 100% accuracy. Slow and memory hungry.",
    "f16": "Float16  - Fastest conversion + retains 100% accuracy. Slow and memory hungry.",
    "q8_0": "Fast conversion. High resource use, but generally acceptable.",
    "q4_k_m": "Recommended. Uses Q6_K for half of the attention.wv and feed_forward.w2 tensors, else Q4_K",
    "q5_k_m": "Recommended. Uses Q6_K for half of the attention.wv and feed_forward.w2 tensors, else Q5_K",
    "q2_k": "Uses Q4_K for the attention.vw and feed_forward.w2 tensors, Q2_K for the other tensors.",
    "q3_k_l": "Uses Q5_K for the attention.wv, attention.wo, and feed_forward.w2 tensors, else Q3_K",
    "q3_k_m": "Uses Q4_K for the attention.wv, attention.wo, and feed_forward.w2 tensors, else Q3_K",
    "q3_k_s": "Uses Q3_K for all tensors",
    "q4_0": "Original quant method, 4-bit.",
    "q4_1": "Higher accuracy than q4_0 but not as high as q5_0. However has quicker inference than q5 models.",
    "q4_k_s": "Uses Q4_K for all tensors",
    "q4_k": "alias for q4_k_m",
    "q5_k": "alias for q5_k_m",
    "q5_0": "Higher accuracy, higher resource usage and slower inference.",
    "q5_1": "Even higher accuracy, resource usage and slower inference.",
    "q5_k_s": "Uses Q5_K for all tensors",
    "q6_k": "Uses Q8_K for all tensors",
    # "iq2_xxs" : "2.06 bpw quantization", # Not supported sadly
    # "iq2_xs"  : "2.31 bpw quantization",
    # "iq3_xxs" : "3.06 bpw quantization",
    "q3_k_xs": "3-bit extra small quantization",
}


def print_quantization_methods():
    for key, value in ALLOWED_QUANTS.items():
        print(f'"{key}"  ==> {value}')


def check_if_sentencepiece_model(
    model, temporary_location = "_unsloth_sentencepiece_temp"
):
    if not hasattr(model, "_saved_temp_tokenizer"):
        return False

    temp_tokenizer = model._saved_temp_tokenizer
    sentencepiece_model = False
    file_location = os.path.join(temporary_location, temp_tokenizer.name_or_path)
    created_folder = False
    if not os.path.exists(file_location):
        created_folder = True
        os.makedirs(file_location)
    temp_tokenizer.save_pretrained(file_location)
    if os.path.isfile(f"{file_location}/tokenizer.model"):
        sentencepiece_model = True
    if created_folder:
        shutil.rmtree(file_location, ignore_errors = True)
    return sentencepiece_model


def _free_cached_model(model):
    from huggingface_hub import scan_cache_dir

    cached_repos = list(scan_cache_dir().repos)

    # Go through every cached repo, and delete the one that matches the model we want to save.
    # Can save 4GB of disk space - useful for Kaggle systems.
    for cached_repo in cached_repos:
        if cached_repo.repo_id == model.config._name_or_path:
            remove_cache_commit = list(cached_repo.revisions)[0].commit_hash
            delete_strategy = scan_cache_dir().delete_revisions(
                remove_cache_commit,
            )

            logger.warning_once(
                "Unsloth: Will remove a cached repo with size "
                + delete_strategy.expected_freed_size_str,
            )

            delete_strategy.execute()


def _merge_lora(layer, name):
    bias = getattr(layer, "bias", None)
    if isinstance(layer, (Bnb_Linear4bit, Peft_Linear4bit, Peft_Linear)):
        # Is LoRA so we need to merge!
        W, quant_state, A, B, s, bias = get_lora_parameters_bias(layer)
        if quant_state is not None:
            dtype = (
                quant_state.dtype if type(quant_state) is not list else quant_state[2]
            )
            W = fast_dequantize(W, quant_state)
        else:
            dtype = W.dtype
        W = W.to(torch.float32).t()
        # W = W.t()

        if A is not None:
            # sAB = (A.t().to(torch.float32) @ (s * B.t().to(torch.float32)))
            # W += sAB
            W.addmm_(A.t().to(torch.float32), B.t().to(torch.float32), alpha = s)
            # W.addmm_(A.t().to(W.dtype), B.t().to(W.dtype), alpha = s)
            # if not torch.isfinite(W).all():
            maximum_element = torch.max(W.min().abs(), W.max())
            if not torch.isfinite(maximum_element).item():
                raise ValueError(
                    f"Unsloth: Merge failed.\n{name} has some elements = infinity."
                )
        W = W.t().to(dtype)
    else:
        W = layer.weight
    return W, bias


def fast_save_pickle(shard, name):
    # Use this if # CPUs is <= 2
    print(f"Unsloth: Saving {name}...")
    torch.save(
        shard,
        name,
        # HIGHEST_PROTOCOL seems to not work with Pytorch!
        # pickle_module   = pickle,
        # pickle_protocol = pickle.HIGHEST_PROTOCOL,
    )
    return


@torch.inference_mode
def unsloth_save_model(
    model,
    tokenizer,
    save_directory: Union[str, os.PathLike],
    save_method: str = "lora",  # ["lora", "merged_16bit", "merged_4bit"]
    push_to_hub: bool = False,
    token: Optional[Union[str, bool]] = None,
    is_main_process: bool = True,
    state_dict: Optional[dict] = None,
    save_function: Callable = torch.save,
    max_shard_size: Union[int, str] = "5GB",
    safe_serialization: bool = True,
    variant: Optional[str] = None,
    save_peft_format: bool = True,
    # Push to hub
    use_temp_dir: Optional[bool] = None,
    commit_message: Optional[str] = "Trained with Unsloth",
    private: Optional[bool] = None,
    create_pr: bool = False,
    revision: str = None,
    commit_description: str = "Upload model trained with Unsloth 2x faster",
    tags: List[str] = None,
    # Our functions
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.9,
):
    if token is None:
        token = get_token()

    if commit_message is None:
        commit_message = ""
    if "Unsloth" not in commit_message:
        commit_message += " (Trained with Unsloth)"
    commit_message = commit_message.lstrip()

    if commit_description is None:
        commit_description = "Upload model trained with Unsloth 2x faster"
    elif "Unsloth 2x faster" not in commit_description:
        commit_description += " (Trained with Unsloth 2x faster)"

    if save_method == "merged_4bit":
        raise RuntimeError(
            "Unsloth: Merging into 4bit will cause your model to lose accuracy if you plan\n"
            "to merge to GGUF or others later on. I suggest you to do this as a final step\n"
            "if you're planning to do multiple saves.\n"
            "If you are certain, change `save_method` to `merged_4bit_forced`."
        )
    elif save_method == "merged_4bit_forced":
        save_method = "merged_4bit"

    save_pretrained_settings = dict(locals())
    for deletion in (
        "model",
        "tokenizer",
        "save_method",
        "temporary_location",
        "maximum_memory_usage",
    ):
        del save_pretrained_settings[deletion]

    # First check for a token!
    if push_to_hub:
        from huggingface_hub import whoami

        try:
            username = whoami(token = token)["name"]
        except:
            raise RuntimeError(
                "Unsloth: Please supply a token!\n"
                "Go to https://huggingface.co/settings/tokens"
            )

    assert maximum_memory_usage > 0 and maximum_memory_usage <= 0.95

    # Clean memory up first
    for _ in range(3):
        torch.cuda.empty_cache()
        gc.collect()

    save_method = save_method.lower().replace(" ", "_")
    if (
        save_method != "lora"
        and save_method != "merged_16bit"
        and save_method != "merged_4bit"
    ):
        raise RuntimeError(
            "Unsloth: You must select one of 3 options when saving models:\n"
            '"lora"         ==> This is the fastest and easiet. Just saves LoRA modules.\n'
            '"merged_16bit" ==> This merges LoRA weights and saves to float16. Needed for llama.cpp / GGUF.\n'
            '"merged_4bit"  ==> This merges LoRA weights and saves to 4bit. Useful for DPO / inference.'
        )

    if save_method == "merged_4bit":
        print("Unsloth: Merging 4bit and LoRA weights to 4bit...")
        print("This might take 5 minutes...")

        # Counteract no LoRA adapters!
        if hasattr(model, "merge_and_unload"):
            model = model.merge_and_unload()
        print("Done.")

    if tags is not None:
        assert isinstance(tags, (list, tuple))
        tags = list(tags) + [
            "unsloth",
        ]
    else:
        tags = [
            "unsloth",
        ]
    save_pretrained_settings["tags"] = tags

    if ((save_method == "lora") or (save_method == "merged_4bit")) and push_to_hub:
        if token is None:
            raise RuntimeError(
                "Unsloth: Pushing to HF requires a token. Pass `token = 'hf_....'`\n"
                "Go to https://huggingface.co/settings/tokens."
            )

        if save_method == "lora":
            print("Unsloth: Saving LoRA adapters. Please wait...")
        elif save_method == "merged_4bit":
            print("Unsloth: Saving 4bit Bitsandbytes model. Please wait...")

        # Update model tag
        _ = upload_to_huggingface(
            model,
            save_directory,
            token,
            "finetuned",
            "trl",
            file_location = None,
            old_username = None,
            private = private,
        )

        getattr(model, "original_push_to_hub", model.push_to_hub)(
            repo_id = save_directory,
            use_temp_dir = use_temp_dir,
            commit_message = commit_message,
            private = private,
            token = token,
            max_shard_size = max_shard_size,
            create_pr = create_pr,
            safe_serialization = safe_serialization,
            revision = revision,
            commit_description = commit_description,
            tags = tags,
        )
        if tokenizer is not None:
            # Set padding side to left for inference
            old_padding_side = tokenizer.padding_side
            tokenizer.padding_side = "left"

            getattr(tokenizer, "original_push_to_hub", tokenizer.push_to_hub)(
                repo_id = save_directory,
                use_temp_dir = use_temp_dir,
                commit_message = commit_message,
                private = private,
                token = token,
                max_shard_size = max_shard_size,
                create_pr = create_pr,
                safe_serialization = safe_serialization,
                revision = revision,
                commit_description = commit_description,
                tags = tags,
            )

            # Revert back padding side
            tokenizer.padding_side = old_padding_side

        if hasattr(model, "config"):
            print(
                f"Saved {save_method} model to https://huggingface.co/" + save_directory
            )
        return save_directory, None

    # Tokenizer has different saving arguments
    tokenizer_save_settings = {
        "save_directory": save_pretrained_settings["save_directory"],
        "legacy_format": None,
        "filename_prefix": None,
        "push_to_hub": save_pretrained_settings["push_to_hub"],
        "private": save_pretrained_settings["private"],
        "token": save_pretrained_settings["token"],
    }

    # Check if PEFT Model or not - if yes, 3 levels. If not 2 levels.
    from peft import PeftModelForCausalLM

    if isinstance(model, PeftModelForCausalLM):
        internal_model = model.model
    else:
        internal_model = model

    # Cannot be converted properly!
    if (
        (save_method == "merged_4bit")
        or (save_method == "lora")
        or (not hasattr(model, "model") or not hasattr(internal_model.model, "layers"))
    ):
        # Do general saving
        # Edit save_pretrained_settings
        # [TODO] _create_repo has errors due to **kwargs getting accepted
        # commit_description does not seem to work?
        what_to_delete = (
            (
                "use_temp_dir",
                "commit_message",
                "create_pr",
                "revision",
                "commit_description",
                "tags",
            )
            if save_pretrained_settings["push_to_hub"] is False
            else (
                "use_temp_dir",
                "create_pr",
                "revision",
                "tags",
                "commit_description",
            )
        )
        for deletion in what_to_delete:
            del save_pretrained_settings[deletion]
        if hasattr(model, "add_model_tags"):
            model.add_model_tags(
                [
                    "unsloth",
                ]
            )

        # Update model tag
        if push_to_hub:
            _ = upload_to_huggingface(
                model,
                save_pretrained_settings["save_directory"],
                token,
                "finetuned",
                "trl",
                file_location = None,
                old_username = None,
                private = private,
            )

        if tokenizer is not None:
            print("Unsloth: Saving tokenizer...", end = "")

            # Set padding side to left for inference
            old_padding_side = tokenizer.padding_side
            tokenizer.padding_side = "left"

            tokenizer.save_pretrained(**tokenizer_save_settings)

            # Revert back padding side
            tokenizer.padding_side = old_padding_side

            print(" Done.")
        else:
            print()

        print("Unsloth: Saving model...", end = "")
        if save_method != "lora":
            print(" This might take 10 minutes for Llama-7b...", end = "")

        # [TODO] Is this correct?
        if save_method == "lora":
            save_pretrained_settings["selected_adapters"] = None

        model.save_pretrained(**save_pretrained_settings)

        if push_to_hub and hasattr(model, "config"):
            print(
                "Saved to https://huggingface.co/"
                + save_pretrained_settings["save_directory"]
            )

        print(" Done.")
        return save_directory, None

    # If push_to_hub, we must remove the .../ part of a repo
    username = None
    if push_to_hub and "/" in save_directory:
        # +1 solves absolute path issues
        new_save_directory = save_directory
        username = new_save_directory[: new_save_directory.find("/")]
        new_save_directory = new_save_directory[new_save_directory.find("/") + 1 :]
        if IS_KAGGLE_ENVIRONMENT:
            new_save_directory = os.path.join(
                KAGGLE_TMP, new_save_directory[new_save_directory.find("/") + 1 :]
            )
            logger.warning_once(
                "Unsloth: You are pushing to hub in Kaggle environment.\n"
                f"To save memory, we shall move {save_directory} to {new_save_directory}"
            )
        else:
            logger.warning_once(
                f"Unsloth: You are pushing to hub, but you passed your HF username = {username}.\n"
                f"We shall truncate {save_directory} to {new_save_directory}"
            )

        save_pretrained_settings["save_directory"] = new_save_directory
        tokenizer_save_settings["save_directory"] = new_save_directory
        save_directory = new_save_directory

    print("Unsloth: Merging 4bit and LoRA weights to 16bit...")

    # Determine max RAM usage minus sharding
    max_ram = psutil.virtual_memory().available
    sharded_ram_usage = 5 * 1024 * 1024 * 1024
    if type(max_shard_size) is str:
        gb_found = re.match(
            r"([0-9]{1,})[\s]{0,}GB", max_shard_size, flags = re.IGNORECASE
        )
        mb_found = re.match(
            r"([0-9]{1,})[\s]{0,}MB", max_shard_size, flags = re.IGNORECASE
        )
        if gb_found:
            sharded_ram_usage = int(gb_found.group(1)) * 1024 * 1024 * 1024
        elif mb_found:
            sharded_ram_usage = int(mb_found.group(1)) * 1024 * 1024
    elif type(max_shard_size) is int:
        sharded_ram_usage = sharded_ram_usage

    # Switch to our fast saving modules if it's a slow PC!
    n_cpus = psutil.cpu_count(logical = False)
    if n_cpus is None:
        n_cpus = psutil.cpu_count()
    if n_cpus is None:
        n_cpus = 1

    if safe_serialization is None:
        safe_serialization = True
        save_pretrained_settings["safe_serialization"] = safe_serialization

    elif safe_serialization and (n_cpus <= 2):
        logger.warning_once(
            f"Unsloth: You have {n_cpus} CPUs. Using `safe_serialization` is 10x slower.\n"
            f"We shall switch to Pytorch saving, which might take 3 minutes and not 30 minutes.\n"
            f"To force `safe_serialization`, set it to `None` instead.",
        )
        safe_serialization = False
        save_function = fast_save_pickle
        save_pretrained_settings["safe_serialization"] = safe_serialization
        save_pretrained_settings["save_function"] = save_function

    # Only safe_serialization uses more RAM
    if safe_serialization:
        max_ram -= sharded_ram_usage
    else:
        max_ram -= sharded_ram_usage * 0.25  # Uses much less

    max_ram = int(max(0, max_ram) * maximum_memory_usage)
    print(
        f"Unsloth: Will use up to "
        f"{round(max_ram/1024/1024/1024, 2)} out of "
        f"{round(psutil.virtual_memory().total/1024/1024/1024, 2)} RAM for saving."
    )

    # Move temporary_location to /tmp in Kaggle
    if IS_KAGGLE_ENVIRONMENT:
        temporary_location = os.path.join(KAGGLE_TMP, temporary_location)

    # Max directory for disk saving
    if not os.path.exists(temporary_location):
        os.makedirs(temporary_location)

    # Check if Kaggle or Colab, since only 20GB of Disk space allowed.
    if IS_KAGGLE_ENVIRONMENT or IS_COLAB_ENVIRONMENT:
        # We free up 4GB of space
        logger.warning_once(
            "Unsloth: Kaggle/Colab has limited disk space. We need to delete the downloaded\n"
            "model which will save 4-16GB of disk space, allowing you to save on Kaggle/Colab."
        )
        _free_cached_model(internal_model)

    # HF also uses a OrderedDict
    from collections import OrderedDict

    state_dict = OrderedDict()

    torch_dtype = dtype_from_config(internal_model.config)
    if type(torch_dtype) is str:
        if torch_dtype == "float16":
            torch_dtype = torch.float16
        elif torch_dtype == "bfloat16":
            torch_dtype = torch.bfloat16

    # Check modules to save float32 dtype
    state_dict["model.embed_tokens.weight"] = (
        internal_model.model.embed_tokens.weight.data.to(torch_dtype)
    )

    max_vram = int(
        torch.cuda.get_device_properties(0).total_memory * maximum_memory_usage
    )

    print("Unsloth: Saving model... This might take 5 minutes ...")

    from tqdm import tqdm as ProgressBar

    for j, layer in enumerate(ProgressBar(internal_model.model.layers)):
        for item in LLAMA_WEIGHTS:
            proj = eval(f"layer.{item}")
            name = f"model.layers.{j}.{item}.weight"
            W, bias = _merge_lora(proj, name)

            # Bias term
            if bias is not None:
                state_dict[f"model.layers.{j}.{item}.bias"] = bias

            if (torch.cuda.memory_allocated() + W.nbytes) < max_vram:
                # Save to GPU memory
                state_dict[name] = W
            # [TODO] Saving to RAM seems to leak memory???
            # elif (max_ram - W.nbytes) > 0:
            #     # Save to CPU memory
            #     logger.warning_once(f"We will save to RAM and not VRAM now.")
            #     state_dict[name] = W.to("cpu", non_blocking = True, copy = True)
            #     max_ram = max(max_ram - W.nbytes, 0)
            else:
                # Save to Disk
                logger.warning_once("\nWe will save to Disk and not RAM now.")
                filename = os.path.join(temporary_location, f"{name}.pt")
                torch.save(
                    W,
                    filename,
                    pickle_module = pickle,
                    pickle_protocol = pickle.HIGHEST_PROTOCOL,
                )
                # weights_only = True weirdly fails?
                state_dict[name] = torch.load(
                    filename, map_location = "cpu", mmap = True, weights_only = False
                )
        for item in LLAMA_LAYERNORMS:
            try:
                # Skip for Gemma 2
                state_dict[f"model.layers.{j}.{item}.weight"] = eval(
                    f"layer.{item}.weight.data"
                )
            except:
                continue

    state_dict["model.norm.weight"] = internal_model.model.norm.weight.data
    # Check for modules_to_save float32 dtype

    # Check for tied weights
    if (
        internal_model.model.embed_tokens.weight.data_ptr()
        != internal_model.lm_head.weight.data_ptr()
    ):
        state_dict["lm_head.weight"] = internal_model.lm_head.weight.data.to(
            torch_dtype
        )

    # All tensors MUST be type torch.Tensor and not torch.nn.parameter.Parameter
    for key, value in state_dict.items():
        if hasattr(value, "data"):
            state_dict[key] = value = value.data
        if type(value) is not torch.Tensor:
            logger.warning_once(f"Unsloth: {key} is not a Tensor but a {type(value)}.")

    # Edit save_pretrained_settings
    # [TODO] _create_repo has errors due to **kwargs getting accepted
    save_pretrained_settings["state_dict"] = state_dict

    # commit_description does not seem to work?
    what_to_delete = (
        (
            "use_temp_dir",
            "commit_message",
            "create_pr",
            "revision",
            "commit_description",
            "tags",
        )
        if not push_to_hub
        else (
            "use_temp_dir",
            "create_pr",
            "revision",
            "tags",
            "commit_description",
        )
    )
    for deletion in what_to_delete:
        del save_pretrained_settings[deletion]
    if hasattr(model, "add_model_tags"):
        model.add_model_tags(
            [
                "unsloth",
            ]
        )

    # Update model tag
    if push_to_hub:
        _ = upload_to_huggingface(
            model,
            save_pretrained_settings["save_directory"],
            token,
            "finetuned",
            "trl",
            file_location = None,
            old_username = username,
            private = private,
        )

    # First check if we're pushing to an organization!
    save_directory = save_pretrained_settings["save_directory"]

    if save_pretrained_settings["push_to_hub"]:
        new_save_directory, new_username = _determine_username(
            save_directory, username, token
        )

        if token is not None:
            from huggingface_hub import whoami

            actual_username = whoami(token = token)["name"]
        else:
            actual_username = username

    # Check if pushing to an organization
    if save_pretrained_settings["push_to_hub"] and (username != actual_username):
        print(f"Unsloth: Saving to organization with address {new_save_directory}")
        # We upload everything at the end!
        tokenizer_save_settings["push_to_hub"] = False
        tokenizer_save_settings["save_directory"] = new_save_directory

    # Save tokenizer
    if tokenizer is not None:
        print("Unsloth: Saving tokenizer...", end = "")

        # Set padding side to left for inference
        old_padding_side = tokenizer.padding_side
        tokenizer.padding_side = "left"

        tokenizer.save_pretrained(**tokenizer_save_settings)

        # Revert back padding side
        tokenizer.padding_side = old_padding_side

        print(" Done.")
    else:
        print()

    # Since merged, edit quantization_config
    old_config = model.config
    new_config = model.config.to_dict()
    if "quantization_config" in new_config:
        del new_config["quantization_config"]
    original_model = model
    new_config = type(model.config).from_dict(new_config)
    while hasattr(original_model, "model"):
        original_model = original_model.model
        original_model.config = new_config
    model.config = new_config

    # Save!
    # [TODO] --> is this correct?
    # save_pretrained_settings["selected_adapters"] = None

    # Check if pushing to an organization
    if save_pretrained_settings["push_to_hub"] and (username != actual_username):
        print(f"Unsloth: Saving to organization with address {new_save_directory}")
        # Pushing to organization!
        # Sadly .save_pretrained doesn't work :(
        # We first save it via .save_pretrained, then upload manually!
        save_pretrained_settings["save_directory"] = new_save_directory
        save_pretrained_settings["push_to_hub"] = False
        internal_model.save_pretrained(**save_pretrained_settings)

        # Now manually go through each file and upload them manually!
        filenames = os.listdir(new_save_directory)

        hf_api = HfApi(token = save_pretrained_settings["token"])

        print("Unsloth: Uploading all files... Please wait...")
        hf_api.upload_folder(
            folder_path = new_save_directory,
            path_in_repo = ".",
            repo_id = new_save_directory,
            repo_type = "model",
            commit_message = "(Trained with Unsloth)",
            ignore_patterns = "*.md",
        )
    else:
        internal_model.save_pretrained(**save_pretrained_settings)

    # Revert config back
    original_model = model
    while hasattr(original_model, "model"):
        original_model = original_model.model
        original_model.config = old_config
    model.config = old_config
    print("Done.")

    if push_to_hub and hasattr(model, "config"):
        print(
            f"Saved merged model to https://huggingface.co/{username}/{save_directory.lstrip('/').split('/')[-1]}"
        )

    save_pretrained_settings["state_dict"] = None

    for j, (key, value) in enumerate(state_dict.items()):
        state_dict[key] = None
        if j % 10 == 0:
            torch.cuda.empty_cache()
            gc.collect()
    state_dict = None
    del state_dict
    torch.cuda.empty_cache()
    gc.collect()

    # Remove temporary location
    import shutil

    shutil.rmtree(temporary_location, ignore_errors = True)

    for _ in range(3):
        torch.cuda.empty_cache()
        gc.collect()
    return save_directory, username


def install_llama_cpp_clone_non_blocking():
    full_command = [
        "git",
        "clone",
        "--recursive",
        "https://github.com/ggerganov/llama.cpp",
    ]
    run_installer = subprocess.Popen(
        full_command, stdout = subprocess.DEVNULL, stderr = subprocess.STDOUT
    )
    return run_installer


def install_llama_cpp_make_non_blocking():
    # https://github.com/ggerganov/llama.cpp/issues/7062
    # Weirdly GPU conversion for GGUF breaks??
    # env = { **os.environ, "LLAMA_CUDA": "1", }
    # Force make clean
    check = os.system("make clean -C llama.cpp")
    IS_CMAKE = False
    if check == 0:
        # Uses old MAKE
        n_jobs = max(int(psutil.cpu_count() * 1.5), 1)
        full_command = ["make", "all", "-j" + str(n_jobs), "-C", "llama.cpp"]
        IS_CMAKE = False
    else:
        # Uses new CMAKE
        n_jobs = max(int(psutil.cpu_count()), 1)  # Use less CPUs since 1.5x faster
        check = os.system(
            "cmake llama.cpp -B llama.cpp/build -DBUILD_SHARED_LIBS=OFF -DGGML_CUDA=OFF -DLLAMA_CURL=ON"
        )
        if check != 0:
            raise RuntimeError(
                f"*** Unsloth: Failed compiling llama.cpp using os.system(...) with error {check}. Please report this ASAP!"
            )
        # f"cmake --build llama.cpp/build --config Release -j{psutil.cpu_count()*2} --clean-first --target {' '.join(LLAMA_CPP_TARGETS)}",
        full_command = [
            "cmake",
            "--build",
            "llama.cpp/build",
            "--config",
            "Release",
            "-j" + str(n_jobs),
            "--clean-first",
            "--target",
        ] + LLAMA_CPP_TARGETS
        IS_CMAKE = True
    # https://github.com/ggerganov/llama.cpp/issues/7062
    # Weirdly GPU conversion for GGUF breaks??
    # run_installer = subprocess.Popen(full_command, env = env, stdout = subprocess.DEVNULL, stderr = subprocess.STDOUT)
    run_installer = subprocess.Popen(
        full_command, stdout = subprocess.DEVNULL, stderr = subprocess.STDOUT
    )
    return run_installer, IS_CMAKE


def install_python_non_blocking(packages = []):
    full_command = ["pip", "install"] + packages
    run_installer = subprocess.Popen(
        full_command, stdout = subprocess.DEVNULL, stderr = subprocess.STDOUT
    )
    return run_installer


def try_execute(commands, force_complete = False):
    for command in commands:
        with subprocess.Popen(
            command,
            shell = True,
            stdout = subprocess.PIPE,
            stderr = subprocess.STDOUT,
            bufsize = 1,
        ) as sp:
            for line in sp.stdout:
                line = line.decode("utf-8", errors = "replace")
                if "undefined reference" in line:
                    raise RuntimeError(
                        f"*** Unsloth: Failed compiling llama.cpp with {line}. Please report this ASAP!"
                    )
                elif "deprecated" in line:
                    return "CMAKE"
                elif "Unknown argument" in line:
                    raise RuntimeError(
                        f"*** Unsloth: Failed compiling llama.cpp with {line}. Please report this ASAP!"
                    )
                elif "***" in line:
                    raise RuntimeError(
                        f"*** Unsloth: Failed compiling llama.cpp with {line}. Please report this ASAP!"
                    )
                print(line, flush = True, end = "")
            if force_complete and sp.returncode is not None and sp.returncode != 0:
                raise subprocess.CalledProcessError(sp.returncode, sp.args)
    return None


def install_llama_cpp_old(version = -10):
    # Download the 10th latest release since the latest might be broken!
    # FALLBACK mechanism
    releases = subprocess.check_output(
        ["git", "ls-remote", "--tags", "https://github.com/ggerganov/llama.cpp.git"]
    )
    releases = releases.decode("utf-8").replace("\t", " ").split("\n")
    for i, x in enumerate(releases):
        if "refs/tags/b" not in x:
            break
    releases = releases[:i]
    latest = releases[-1]
    version = releases[version].split(" ")[0]

    # Check if the llama.cpp exists
    if os.path.exists("llama.cpp"):
        print(
            "**[WARNING]** You have a llama.cpp directory which is broken.\n"
            "Unsloth will DELETE the broken directory and install a new one.\n"
            "Press CTRL + C / cancel this if this is wrong. We shall wait 30 seconds.\n"
        )
        import time

        for i in range(30):
            print(f"**[WARNING]** Deleting llama.cpp directory... {30-i} seconds left.")
            time.sleep(1)
        import shutil

        shutil.rmtree("llama.cpp", ignore_errors = True)

    # Clone a specific commit
    # Also don't use the GPU!
    commands = [
        "git clone --recursive https://github.com/ggerganov/llama.cpp",
        f"cd llama.cpp && git reset --hard {version} && git clean -df",
    ]
    try_execute(commands)

    # Try using MAKE
    commands = [
        "make clean -C llama.cpp",
        f"make all -j{psutil.cpu_count()*2} -C llama.cpp",
    ]
    if try_execute(commands) == "CMAKE":
        # Instead use CMAKE
        commands = [
            "cmake llama.cpp -B llama.cpp/build -DBUILD_SHARED_LIBS=OFF -DGGML_CUDA=OFF -DLLAMA_CURL=ON",
            f"cmake --build llama.cpp/build --config Release -j{psutil.cpu_count()*2} --clean-first --target {' '.join(LLAMA_CPP_TARGETS)}",
            "cp llama.cpp/build/bin/llama-* llama.cpp",
            "rm -rf llama.cpp/build",
        ]
        try_execute(commands)

    # Check if successful
    if not (
        os.path.exists("llama.cpp/llama-quantize.exe")
        or os.path.exists("llama.cpp/llama-quantize")
        or os.path.exists("llama.cpp/quantize.exe")
        or os.path.exists("llama.cpp/quantize")
        or os.path.exists("llama.cpp/build/bin/llama-quantize")
        or os.path.exists("llama.cpp/build/bin/quantize")
    ):
        raise RuntimeError(
            "Unsloth: The file 'llama.cpp/llama-quantize' or `llama.cpp/quantize` does not exist.\n"
            "We've also double checked the building directory under 'llama.cpp/build/bin/'.\n"
            "But we expect this file to exist! Check if the file exists under llama.cpp and investigate the building process of llama.cpp (make/cmake)!"
        )


def install_llama_cpp_blocking(use_cuda = False):
    # https://github.com/ggerganov/llama.cpp/issues/7062
    # Weirdly GPU conversion for GGUF breaks??
    # use_cuda = "LLAMA_CUDA=1" if use_cuda else ""

    commands = [
        "git clone --recursive https://github.com/ggerganov/llama.cpp",
        "pip install gguf protobuf",
    ]
    if os.path.exists("llama.cpp"):
        return
    try_execute(commands)

    commands = [
        "make clean -C llama.cpp",
        # https://github.com/ggerganov/llama.cpp/issues/7062
        # Weirdly GPU conversion for GGUF breaks??
        # f"{use_cuda} make all -j{psutil.cpu_count()*2} -C llama.cpp",
        f"make all -j{psutil.cpu_count()*2} -C llama.cpp",
    ]
    if try_execute(commands) == "CMAKE":
        # Instead use CMAKE
        commands = [
            "cmake llama.cpp -B llama.cpp/build -DBUILD_SHARED_LIBS=OFF -DGGML_CUDA=OFF -DLLAMA_CURL=ON",
            f"cmake --build llama.cpp/build --config Release -j{psutil.cpu_count()*2} --clean-first --target {' '.join(LLAMA_CPP_TARGETS)}",
            "cp llama.cpp/build/bin/llama-* llama.cpp",
            "rm -rf llama.cpp/build",
        ]
        try_execute(commands)


def get_executable(executables):
    # Get system locations (System Path).split(system separator)
    system_directories = os.environ.get("PATH").split(os.pathsep)

    for directory in system_directories:
        for executable in executables:
            path = os.path.join(directory, executable)
            # Check if the executable exists and is executable
            if os.path.exists(path) and os.access(path, os.X_OK):
                return path
    return None


def save_to_gguf(
    model_name: str,
    model_type: str,
    model_dtype: str,
    is_sentencepiece: bool = False,
    model_directory: str = "unsloth_finetuned_model",
    quantization_method = "fast_quantized",  # Can be a list of options! ["q4_k_m", "q8_0", "q5_k_m"]
    first_conversion: str = None,
    is_vlm: bool = False,
    is_gpt_oss: bool = False,
):
    """
    Orchestrates the complete GGUF conversion process.
    Handles installation, conversion, and quantization.
    """
    # print_output True only if UNSLOTH_ENABLE_LOGGING=1
    if os.environ.get("UNSLOTH_ENABLE_LOGGING", "0") == "1":
        print_output = True
    else:
        print_output = False

    # Validate model dtype
    assert model_dtype == "float16" or model_dtype == "bfloat16"
    model_dtype = "f16" if model_dtype == "float16" else "bf16"

    # Convert quantization_method to list
    if isinstance(quantization_method, list):
        pass
    elif isinstance(quantization_method, str):
        quantization_method = [
            quantization_method,
        ]
    elif isinstance(quantization_method, tuple):
        quantization_method = list(quantization_method)
    else:
        raise TypeError(
            "Unsloth: quantization_method can only be a string or a list of strings"
        )

    # Check if bfloat16 is supported
    if model_dtype == "bf16" and not torch.cuda.is_bf16_supported():
        logger.warning(
            "Unsloth: Cannot convert to bf16 GGUF since your computer doesn't support it.\n"
            "We shall switch instead to f16."
        )
        model_dtype = "f16"

    # Check first_conversion as well
    if first_conversion is None:
        first_conversion = model_dtype

    # Check I quants
    for quant_method in quantization_method:
        if quant_method.startswith("iq2"):
            raise RuntimeError(
                "Unsloth: Currently iq2 type quantizations aren't supported yet - sorry!"
            )

    # Map quant methods
    new_quantization_methods = []
    for quant_method in quantization_method:
        if quant_method == "not_quantized":
            quant_method = model_dtype
        elif quant_method == "fast_quantized":
            quant_method = "q8_0"
        elif quant_method == "quantized":
            quant_method = "q4_k_m"
        elif quant_method is None:
            quant_method = "q8_0"

        # Check if wrong method
        if quant_method not in ALLOWED_QUANTS.keys():
            error = f"Unsloth: Quant method = [{quant_method}] not supported. Choose from below:\n"
            for key, value in ALLOWED_QUANTS.items():
                error += f"[{key}] => {value}\n"
            raise RuntimeError(error)

        new_quantization_methods.append(quant_method)
    quantization_method = new_quantization_methods

    # Determine optimal first_conversion
    if is_gpt_oss:
        print("Unsloth: GPT-OSS model detected - using special conversion settings")
        first_conversion = "None"  # No quantization for GPT-OSS
        # Only keep one conversion method since GPT-OSS doesn't quantize
        quantization_method = ["None"]
    else:
        if first_conversion is None:
            # Check if q8_0 is the ONLY quantization method requested
            if len(quantization_method) == 1 and quantization_method[0] == "q8_0":
                first_conversion = "None"  # Let llama-quantize do the direct conversion
            else:
                # For all other cases, choose the highest precision format
                # that can be requantized to all requested formats
                strength = 0
                for quant_method in quantization_method:
                    if quant_method == "f32":
                        strength = max(strength, 3)
                    elif quant_method == "f16":
                        strength = max(strength, 2)
                    elif quant_method == "bf16":
                        strength = max(strength, 1)
                    # Note: we don't set strength for q8_0 here since we handle it above

                if strength >= 3:
                    first_conversion = "f32"
                elif strength >= 2:
                    first_conversion = "f16"
                elif strength >= 1:
                    first_conversion = "bf16"
                else:
                    first_conversion = "bf16"  # requantizing from q8_0 disallowed in new llama.cpp default to bf16.

    # Check bfloat16 support again for first_conversion
    if first_conversion == "bf16" and not torch.cuda.is_bf16_supported():
        logger.warning("Unsloth: Switching bf16 to f16 due to hardware limitations")
        first_conversion = "f16"

    first_conversion_dtype = "" if first_conversion == "None" else first_conversion
    # Print conversion info
    print_info = (
        f"==((====))==  Unsloth: Conversion from HF to GGUF information\n"
        f"   {chr(92)}{chr(92)}   /|    [0] Installing llama.cpp might take 3 minutes.\n"
        f"O^O/ {chr(92)}_/ {chr(92)}    [1] Converting HF to GGUF {first_conversion_dtype} might take 3 minutes.\n"
        f"{chr(92)}        /    [2] Converting GGUF {first_conversion_dtype} to {quantization_method} might take 10 minutes each.\n"
        f' "-____-"     In total, you will have to wait at least 16 minutes.\n'
    )
    print(print_info)

    # Step 1: Ensure llama.cpp is installed
    try:
        quantizer_location, converter_location = check_llama_cpp()
        print("Unsloth: llama.cpp found in the system. Skipping installation.")
    except:
        print("Unsloth: Installing llama.cpp. This might take 3 minutes...")
        if IS_KAGGLE_ENVIRONMENT:
            # Kaggle: no CUDA support due to environment limitations
            quantizer_location, converter_location = install_llama_cpp(
                gpu_support = False, print_output = print_output
            )
        else:
            quantizer_location, converter_location = install_llama_cpp(
                gpu_support = False,  # GGUF conversion doesn't need CUDA
                print_output = print_output,
            )

    # Step 2: Download and patch converter script
    print("Unsloth: Preparing converter script...")
    with use_local_gguf():
        converter_path, supported_text_archs, supported_vision_archs = (
            _download_convert_hf_to_gguf()
        )

        # Step 3: Initial GGUF conversion
        print(
            f"Unsloth: [1] Converting model into {first_conversion_dtype} GGUF format."
        )
        print(f"This might take 3 minutes...")

        initial_files, is_vlm_update = convert_to_gguf(
            model_name = model_name,
            input_folder = model_directory,
            model_dtype = model_dtype,
            quantization_type = first_conversion,
            converter_location = converter_path,
            supported_text_archs = supported_text_archs,
            supported_vision_archs = supported_vision_archs,
            is_vlm = is_vlm,
            is_gpt_oss = is_gpt_oss,
            max_shard_size = "50GB",
            print_output = print_output,
        )
    # update is_vlm switch
    is_vlm = is_vlm_update
    # Check conversion success
    for file in initial_files:
        if not os.path.exists(file):
            if IS_KAGGLE_ENVIRONMENT:
                raise RuntimeError(
                    f"Unsloth: Conversion failed for {file}\n"
                    "You are in a Kaggle environment with limited disk space (20GB).\n"
                    "Try saving to /tmp for more space or use a smaller model.\n"
                    "Alternatively, save the 16bit model first, then convert manually."
                )
            else:
                raise RuntimeError(
                    f"Unsloth: Conversion failed for {file}\n"
                    "Please check disk space and try again."
                )

    print(f"Unsloth: Initial conversion completed! Files: {initial_files}")

    # Step 4: Additional quantizations using llama-quantize
    all_saved_locations = initial_files.copy()

    # Get CPU count for quantization
    n_cpus = psutil.cpu_count()
    if n_cpus is None:
        n_cpus = 1
    n_cpus *= 2

    if not is_gpt_oss:
        base_gguf = initial_files[0]
        quants_created = False
        for quant_method in quantization_method:
            if quant_method != first_conversion:
                print(
                    f"Unsloth: [2] Converting GGUF {first_conversion_dtype} into {quant_method}. This might take 10 minutes..."
                )
                output_location = f"{model_name}.{quant_method.upper()}.gguf"

                try:
                    # Use the quantize_gguf function we created
                    quantized_file = quantize_gguf(
                        input_gguf = base_gguf,
                        output_gguf = output_location,
                        quant_type = quant_method,
                        quantizer_location = quantizer_location,
                        print_output = print_output,
                    )
                    all_saved_locations.append(quantized_file)
                    quants_created = True
                except Exception as e:
                    if IS_KAGGLE_ENVIRONMENT:
                        raise RuntimeError(
                            f"Unsloth: Quantization failed for {output_location}\n"
                            "You are in a Kaggle environment, which might be the reason this is failing.\n"
                            "Kaggle only provides 20GB of disk space in the working directory.\n"
                            "Merging to 16bit for 7b models use 16GB of space.\n"
                            "This means using `model.{save_pretrained/push_to_hub}_merged` works, but\n"
                            "`model.{save_pretrained/push_to_hub}_gguf will use too much disk space.\n"
                            "You can try saving it to the `/tmp` directory for larger disk space.\n"
                            "I suggest you to save the 16bit model first, then use manual llama.cpp conversion.\n"
                            "Error: {e}"
                        )
                    else:
                        raise RuntimeError(
                            f"Unsloth: Quantization failed for {output_location}\n"
                            "You might have to compile llama.cpp yourself, then run this again.\n"
                            "You do not need to close this Python program. Run the following commands in a new terminal:\n"
                            "You must run this in the same folder as you're saving your model.\n"
                            "git clone --recursive https://github.com/ggerganov/llama.cpp\n"
                            "cd llama.cpp && make clean && make all -j\n"
                            "Once that's done, redo the quantization.\n"
                            "Error: {e}"
                        )
        print("Unsloth: Model files cleanup...")
        if quants_created:
            all_saved_locations.remove(base_gguf)
            Path(base_gguf).unlink()

            # flip the list to get [text_model, mmproj] order. for text models stays the same.
            all_saved_locations.reverse()
    else:
        print("Unsloth: GPT-OSS model - skipping additional quantizations")

    if is_gpt_oss:
        want_full_precision = True
    else:
        want_full_precision = first_conversion in frozenset(quantization_method)

    print(f"Unsloth: All GGUF conversions completed successfully!")
    print(f"Generated files: {all_saved_locations}")

    return all_saved_locations, want_full_precision, is_vlm


def unsloth_save_pretrained_merged(
    self,
    save_directory: Union[str, os.PathLike],
    tokenizer = None,
    save_method: str = "merged_16bit",  # ["lora", "merged_16bit", "merged_4bit"]
    push_to_hub: bool = False,
    token: Optional[Union[str, bool]] = None,
    is_main_process: bool = True,
    state_dict: Optional[dict] = None,
    save_function: Callable = torch.save,
    max_shard_size: Union[int, str] = "5GB",
    safe_serialization: bool = True,
    variant: Optional[str] = None,
    save_peft_format: bool = True,
    tags: List[str] = None,
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.75,
):
    """
    Same as .save_pretrained(...) except 4bit weights are auto
    converted to float16 with as few overhead as possible.

    Choose for `save_method` to be either:
    1. `16bit`: Merge LoRA into float16 weights. Useful for GGUF / llama.cpp.
    2.  `4bit`: Merge LoRA into int4 weights. Useful for DPO / HF inference.
    3.  `lora`: Save LoRA adapters with no merging. Useful for HF inference.
    """
    if tokenizer is None:
        logger.warning_once(
            "Unsloth: You're not saving a tokenizer as well?\n"
            "You can do it separately via `tokenizer.save_pretrained(...)`"
        )

    arguments = dict(locals())
    arguments["model"] = self
    del arguments["self"]
    unsloth_save_model(**arguments)
    for _ in range(3):
        gc.collect()


def unsloth_push_to_hub_merged(
    self,
    repo_id: str,
    tokenizer = None,
    save_method: str = "merged_16bit",  # ["lora", "merged_16bit", "merged_4bit"]
    use_temp_dir: Optional[bool] = None,
    commit_message: Optional[str] = "Trained with Unsloth",
    private: Optional[bool] = None,
    token: Union[bool, str, None] = None,
    max_shard_size: Union[int, str, None] = "5GB",
    create_pr: bool = False,
    safe_serialization: bool = True,
    revision: str = None,
    commit_description: str = "Upload model trained with Unsloth 2x faster",
    tags: Optional[List[str]] = None,
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.75,
):
    """
    Same as .push_to_hub(...) except 4bit weights are auto
    converted to float16 with as few overhead as possible.

    Choose for `save_method` to be either:
    1. `16bit`: Merge LoRA into float16 weights. Useful for GGUF / llama.cpp.
    2.  `4bit`: Merge LoRA into int4 weights. Useful for DPO / HF inference.
    3.  `lora`: Save LoRA adapters with no merging. Useful for HF inference.
    """
    if tokenizer is None:
        logger.warning_once(
            "Unsloth: You're not saving a tokenizer as well?\n"
            "You can do it separately via `tokenizer.push_to_hub(...)`"
        )

    arguments = dict(locals())
    arguments["model"] = self
    arguments["save_directory"] = repo_id
    arguments["push_to_hub"] = True
    del arguments["self"]
    del arguments["repo_id"]
    unsloth_save_model(**arguments)
    for _ in range(3):
        gc.collect()


MODEL_CARD = """---
base_model: {base_model}
tags:
- text-generation-inference
- transformers
- unsloth
- {model_type}
- {extra}
license: apache-2.0
language:
- en
---

# Uploaded {method} model

- **Developed by:** {username}
- **License:** apache-2.0
- **Finetuned from model :** {base_model}

This {model_type} model was trained 2x faster with [Unsloth](https://github.com/unslothai/unsloth) and Huggingface's TRL library.

[<img src="https://raw.githubusercontent.com/unslothai/unsloth/main/images/unsloth%20made%20with%20love.png" width="200"/>](https://github.com/unslothai/unsloth)
"""


def _determine_username(save_directory, old_username, token):
    username = ""
    save_directory = save_directory.lstrip("./")
    if "/" not in save_directory:
        from huggingface_hub import whoami

        try:
            username = whoami(token = token)["name"]
            if type(old_username) is str and username != old_username:
                username = old_username
            save_directory = f"{username}/{save_directory}"
        except:
            raise RuntimeError(
                f"Unsloth: {save_directory} is not a Huggingface directory."
            )
    else:
        username = save_directory.split("/")[0]
    return save_directory, username


def create_huggingface_repo(
    model,
    save_directory,
    token = None,
    private = False,
):
    if token is None:
        token = get_token()
    save_directory, username = _determine_username(save_directory, "", token)

    from huggingface_hub import create_repo

    try:
        create_repo(
            repo_id = save_directory,
            token = token,
            repo_type = "model",
            exist_ok = False,
            private = private,
        )

        # Create model card
        from huggingface_hub import ModelCard

        content = MODEL_CARD.format(
            username = username,
            base_model = model.config._name_or_path,
            model_type = model.config.model_type,
            method = "",
            extra = "unsloth",
        )
        card = ModelCard(content)
        card.push_to_hub(save_directory, token = token)
    except:
        pass
    hf_api = HfApi(token = token)
    return save_directory, hf_api


def upload_to_huggingface(
    model,
    save_directory,
    token,
    method,
    extra = "",
    file_location = None,
    old_username = None,
    private = None,
    create_config = True,
):
    save_directory, username = _determine_username(save_directory, old_username, token)

    from huggingface_hub import create_repo

    try:
        create_repo(
            repo_id = save_directory,
            token = token,
            repo_type = "model",
            exist_ok = False,
            private = private,
        )

        # Create model card
        from huggingface_hub import ModelCard

        content = MODEL_CARD.format(
            username = username,
            base_model = model.config._name_or_path,
            model_type = model.config.model_type,
            method = "",
            extra = extra,
        )
        card = ModelCard(content)
        card.push_to_hub(save_directory, token = token)
    except:
        pass

    if file_location is not None:
        # Now upload file
        hf_api = HfApi(token = token)

        if "/" in file_location:
            uploaded_location = file_location[file_location.rfind("/") + 1 :]
        else:
            uploaded_location = file_location

        # find ftevent file from tensorboard and upload it
        import glob

        ftevent_files = glob.glob("*out.tfevents*", recursive = True)
        if len(ftevent_files) > 0:
            print(
                "Unsloth: Uploading tensorboard files... Please wait...",
                file_location + "*out.tfevents*",
            )
            for ftevent_file in ftevent_files:
                hf_api.upload_file(
                    path_or_fileobj = ftevent_file,
                    path_in_repo = ftevent_file.replace(file_location, ""),
                    repo_id = save_directory,
                    repo_type = "model",
                    commit_message = "(Trained with Unsloth)",
                )

        hf_api.upload_file(
            path_or_fileobj = file_location,
            path_in_repo = uploaded_location,
            repo_id = save_directory,
            repo_type = "model",
            commit_message = "(Trained with Unsloth)",
        )

        # We also upload a config.json file
        if create_config:
            import json

            with open("_temporary_unsloth_config.json", "w", encoding = "utf-8") as file:
                json.dump({"model_type": model.config.model_type}, file, indent = 4)
            hf_api.upload_file(
                path_or_fileobj = "_temporary_unsloth_config.json",
                path_in_repo = "config.json",
                repo_id = save_directory,
                repo_type = "model",
                commit_message = "(Trained with Unsloth)",
            )
            os.remove("_temporary_unsloth_config.json")
    return username


def fix_tokenizer_bos_token(tokenizer):
    # Check if BOS added already, then warn
    fix_bos_token = False
    chat_template = getattr(tokenizer, "chat_template", None)

    if tokenizer("A").input_ids[0] == getattr(tokenizer, "bos_token_id", None):
        if chat_template is not None and (
            tokenizer.bos_token in chat_template
            or "{bos_token}" in chat_template.replace(" ", "")
            or "{bos_token+" in chat_template.replace(" ", "")
        ):
            fix_bos_token = True
            logger.warning(
                "Unsloth: ##### The current model auto adds a BOS token.\n"
                "Unsloth: ##### Your chat template has a BOS token. We shall remove it temporarily."
            )

            # Remove {{bos_token}}
            new_chat_template = re.sub(
                r"\{[\s]{0,}\{[\s]{0,}bos\_token[\s]{0,}\}[\s]{0,}\}", "", chat_template
            )
            # Remove {{bos_token +
            new_chat_template = re.sub(
                r"\{[\s]{0,}\{[\s]{0,}bos\_token[\s]{0,}\+[\s]{0,}",
                "",
                new_chat_template,
            )

            tokenizer.chat_template = new_chat_template

    return fix_bos_token, chat_template


def create_ollama_modelfile(tokenizer, base_model_name, model_location):
    """
    Creates an Ollama Modelfile.
    Use ollama.create(model = "new_ollama_model", modelfile = modelfile)
    """
    ollama_template_name = MODEL_TO_OLLAMA_TEMPLATE_MAPPER.get(base_model_name)
    if not ollama_template_name:
        print(
            f"Unsloth: No Ollama template mapping found for model '{base_model_name}'. Skipping Ollama Modelfile"
        )
        return None
    ollama_modelfile = OLLAMA_TEMPLATES.get(ollama_template_name)
    if not ollama_modelfile:
        print(
            f"Unsloth: No Ollama template mapping found for model '{base_model_name}'. Skipping Ollama Modelfile"
        )
        return None
    tokenizer._ollama_modelfile = (
        ollama_modelfile  # This comes from the unpacking above
    )
    modelfile = ollama_modelfile

    FILE_LOCATION_REPLACER = "⚫@✅#🦥__FILE_LOCATION__⚡@🦥#⛵"
    EOS_TOKEN_REPLACER = "⚫@✅#🦥__EOS_TOKEN__⚡@🦥#⛵"
    LEFT_BRACKET_REPLACER = "⚫@✅#🦥"
    RIGHT_BRACKET_REPLACER = "⚡@🦥#⛵"

    # Fixes https://github.com/unslothai/unsloth/issues/1087
    # We must convert all {'s and }'s but keep {__FILE_LOCATION__} intact
    modelfile = (
        modelfile.replace("{__FILE_LOCATION__}", FILE_LOCATION_REPLACER)
        .replace("{__EOS_TOKEN__}", EOS_TOKEN_REPLACER)
        .replace("{", LEFT_BRACKET_REPLACER)
        .replace("}", RIGHT_BRACKET_REPLACER)
    )

    # Revert {__FILE_LOCATION__} back
    modelfile = modelfile.replace(
        FILE_LOCATION_REPLACER, "{__FILE_LOCATION__}"
    ).replace(EOS_TOKEN_REPLACER, "{__EOS_TOKEN__}")

    if "__EOS_TOKEN__" in modelfile:
        modelfile = modelfile.format(
            __FILE_LOCATION__ = model_location,
            __EOS_TOKEN__ = tokenizer.eos_token,
        )
    else:
        modelfile = modelfile.format(
            __FILE_LOCATION__ = model_location,
        )

    modelfile = modelfile.replace("⚫@✅#🦥", "{").replace("⚡@🦥#⛵", "}").rstrip()

    return modelfile


def create_ollama_model(username: str, model_name: str, tag: str, modelfile_path: str):
    try:
        init_check = subprocess.run(
            ["curl", "http://localhost:11434"],
            capture_output = True,
            text = True,
            timeout = 3,
        )
        if init_check.returncode == 0:
            print(init_check.stdout.strip())
        else:
            print("Ollama Server is not Running")
    except subprocess.TimeoutExpired:
        return "Ollama Request Timeout"

    process = subprocess.Popen(
        [
            "ollama",
            "create",
            f"{username}/{model_name}:{tag}",
            "-f",
            f"{modelfile_path}",
        ],
        stdout = subprocess.PIPE,
        stderr = subprocess.STDOUT,
        text = True,
        bufsize = 1,
        universal_newlines = True,
    )

    for line in iter(process.stdout.readline, ""):
        print(line, end = "")
        sys.stdout.flush()

    return_code = process.wait()

    if return_code != 0:
        print(f"\nMODEL CREATED FAILED WITH RETURN CODE {return_code}")
    else:
        print("\nMODEL CREATED SUCCESSFULLY")


def push_to_ollama_hub(username: str, model_name: str, tag: str):
    try:
        init_check = subprocess.run(
            ["curl", "http://localhost:11434"],
            capture_output = True,
            text = True,
            timeout = 3,
        )
        if init_check.returncode == 0:
            print(init_check.stdout.strip())
        else:
            print("Ollama Server is not Running")
    except subprocess.TimeoutExpired:
        return "Ollama Request Timeout"

    process = subprocess.Popen(
        ["ollama", "push", f"{username}/{model_name}:{tag}"],
        stdout = subprocess.PIPE,
        stderr = subprocess.STDOUT,
        text = True,
        bufsize = 1,
        universal_newlines = True,
    )

    for line in iter(process.stdout.readline, ""):
        print(line, end = "")
        sys.stdout.flush()

    return_code = process.wait()

    if return_code != 0:
        print(f"\nMODEL PUBLISHED FAILED WITH RETURN CODE {return_code}")
    else:
        print("\nMODEL PUBLISHED SUCCESSFULLY")


def push_to_ollama(tokenizer, gguf_location, username: str, model_name: str, tag: str):
    model_file = create_ollama_modelfile(
        tokenizer = tokenizer, gguf_location = gguf_location
    )

    with open(f"Modelfile_{model_name}", "w", encoding = "utf-8") as f:
        f.write(model_file)
        f.close()

    create_ollama_model(
        username = username,
        model_name = model_name,
        tag = tag,
        modelfile_path = f"Modelfile_{model_name}",
    )

    push_to_ollama_hub(username = username, model_name = model_name, tag = tag)

    print("Successfully pushed to ollama")


def unsloth_save_pretrained_gguf(
    self,
    save_directory: Union[str, os.PathLike],
    tokenizer = None,
    quantization_method = "fast_quantized",
    first_conversion: str = None,
    push_to_hub: bool = False,
    token: Optional[Union[str, bool]] = None,
    private: Optional[bool] = None,
    is_main_process: bool = True,
    state_dict: Optional[dict] = None,
    save_function: Callable = torch.save,
    max_shard_size: Union[int, str] = "5GB",
    safe_serialization: bool = True,
    variant: Optional[str] = None,
    save_peft_format: bool = True,
    tags: List[str] = None,
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.85,
):
    """
    Same as .save_pretrained(...) except 4bit weights are auto
    converted to float16 then converted to GGUF / llama.cpp format.

    Choose for `quantization_method` to be:
    "not_quantized"  : "Recommended. Fast conversion. Slow inference, big files.",
    "fast_quantized" : "Recommended. Fast conversion. OK inference, OK file size.",
    "quantized"      : "Recommended. Slow conversion. Fast inference, small files.",
    "f32"     : "Not recommended. Retains 100% accuracy, but super slow and memory hungry.",
    "f16"     : "Fastest conversion + retains 100% accuracy. Slow and memory hungry.",
    "q8_0"    : "Fast conversion. High resource use, but generally acceptable.",
    "q4_k_m"  : "Recommended. Uses Q6_K for half of the attention.wv and feed_forward.w2 tensors, else Q4_K",
    "q5_k_m"  : "Recommended. Uses Q6_K for half of the attention.wv and feed_forward.w2 tensors, else Q5_K",
    "q2_k"    : "Uses Q4_K for the attention.vw and feed_forward.w2 tensors, Q2_K for the other tensors.",
    "q3_k_l"  : "Uses Q5_K for the attention.wv, attention.wo, and feed_forward.w2 tensors, else Q3_K",
    "q3_k_m"  : "Uses Q4_K for the attention.wv, attention.wo, and feed_forward.w2 tensors, else Q3_K",
    "q3_k_s"  : "Uses Q3_K for all tensors",
    "q4_0"    : "Original quant method, 4-bit.",
    "q4_1"    : "Higher accuracy than q4_0 but not as high as q5_0. However has quicker inference than q5 models.",
    "q4_k_s"  : "Uses Q4_K for all tensors",
    "q4_k"    : "alias for q4_k_m",
    "q5_k"    : "alias for q5_k_m",
    "q5_0"    : "Higher accuracy, higher resource usage and slower inference.",
    "q5_1"    : "Even higher accuracy, resource usage and slower inference.",
    "q5_k_s"  : "Uses Q5_K for all tensors",
    "q6_k"    : "Uses Q8_K for all tensors",
    "iq2_xxs" : "2.06 bpw quantization",
    "iq2_xs"  : "2.31 bpw quantization",
    "iq3_xxs" : "3.06 bpw quantization",
    "q3_k_xs" : "3-bit extra small quantization",
    """
    if tokenizer is None:
        raise ValueError("Unsloth: Saving to GGUF must have a tokenizer.")

    try:
        base_model_name = get_model_name(self.config._name_or_path, load_in_4bit = False)
        model_name = base_model_name.split("/")[-1]
    except:
        base_model_name = self.config._name_or_path
        model_name = base_model_name.split("/")[-1]

    # Check if push_to_hub is requested
    if push_to_hub:
        raise ValueError(
            "Unsloth: Please use .push_to_hub_gguf() instead of .save_pretrained_gguf() with push_to_hub=True"
        )

    # Step 1: Check if this is a VLM (Vision-Language Model) and check if gpt-oss
    is_vlm = False
    if hasattr(self, "config") and hasattr(self.config, "architectures"):
        is_vlm = any(
            x.endswith(("ForConditionalGeneration", "ForVisionText2Text"))
            for x in self.config.architectures
        )
        is_vlm = is_vlm or hasattr(self.config, "vision_config")

    is_processor = is_vlm and isinstance(tokenizer, ProcessorMixin)

    is_gpt_oss = (
        True
        if (
            hasattr(self.config, "architectures")
            and self.config.architectures == "GptOssForCausalLM"
        )
        or (
            hasattr(self.config, "model_type")
            and self.config.model_type in ["gpt-oss", "gpt_oss"]
        )
        else False
    )
    # Step 2: Prepare arguments for model saving
    arguments = dict(locals())
    arguments["model"] = self
    arguments["tokenizer"] = tokenizer
    arguments["push_to_hub"] = False  # We handle upload ourselves
    # GPT-OSS needs mxfp4 save method
    if is_gpt_oss:
        arguments["save_method"] = "mxfp4"
    else:
        arguments["save_method"] = "merged_16bit"
    del arguments["self"]
    del arguments["quantization_method"]
    del arguments["first_conversion"]
    del arguments["is_vlm"]
    del arguments["is_gpt_oss"]
    del arguments["model_name"]
    del arguments["base_model_name"]
    del arguments["is_processor"]

    # Step 3: Fix tokenizer BOS token if needed
    if is_processor:
        fix_bos_token, old_chat_template = fix_tokenizer_bos_token(tokenizer.tokenizer)
    else:
        fix_bos_token, old_chat_template = fix_tokenizer_bos_token(tokenizer)

    # Step 4: Save/merge model to 16-bit format
    print(
        f'Unsloth: Merging model weights to {"mxfp4" if is_gpt_oss else "16-bit"} format...'
    )
    try:
        # Call unsloth_generic_save directly (it's in the same file)
        unsloth_generic_save(**arguments)

    except Exception as e:
        raise RuntimeError(f"Failed to save/merge model: {e}")

    if is_processor:
        tokenizer = tokenizer.tokenizer

    # Use old chat template if the bos is removed
    if fix_bos_token:
        tokenizer.chat_template = old_chat_template

    # Step 6: Clean up memory
    for _ in range(3):
        import gc

        gc.collect()
        if torch.cuda.is_available():
            torch.cuda.empty_cache()

    # Step 7: Get model dtype and type
    try:
        model_dtype = dtype_from_config(self.config)
        model_type = self.config.model_type
        if type(model_dtype) is str:
            assert model_dtype == "float16" or model_dtype == "bfloat16"
        elif model_dtype == torch.float16:
            model_dtype = "float16"
        elif model_dtype == torch.bfloat16:
            model_dtype = "bfloat16"
        else:
            raise TypeError("Unsloth: Model dtype can only be float16 or bfloat16")
    except Exception as e:
        # Fallback if dtype_from_config fails
        print(f"Unsloth: Could not determine dtype ({e}), defaulting to float16")
        model_dtype = "float16"

    # Step 8: Convert to GGUF format
    print("Unsloth: Converting to GGUF format...")

    # Convert quantization_method to list if string
    # Use old style quantization_method
    quantization_methods = []
    if quantization_method is not None:
        # Convert quantization_method to list
        if isinstance(quantization_method, list):
            pass
        elif isinstance(quantization_method, str):
            quantization_method = [
                quantization_method,
            ]
        elif isinstance(quantization_method, tuple):
            quantization_method = list(quantization_method)
        else:
            raise TypeError(
                "Unsloth: quantization_method can only be a string or a list of strings"
            )
        for i, quant_method in enumerate(quantization_method):
            quant_method = quant_method.lower()
            if quant_method == "not_quantized":
                quant_method = "f16"
            elif quant_method == "fast_quantized":
                quant_method = "q8_0"
            elif quant_method == "quantized":
                quant_method = "q4_k_m"
            elif quant_method is None:
                quant_method = "q8_0"
            quantization_methods.append(quant_method.lower())

    try:
        all_file_locations, want_full_precision, is_vlm_update = save_to_gguf(
            model_name = model_name,
            model_type = model_type,
            model_dtype = model_dtype,
            is_sentencepiece = False,
            model_directory = save_directory,
            quantization_method = quantization_methods,
            first_conversion = first_conversion,
            is_vlm = is_vlm,  # Pass VLM flag
            is_gpt_oss = is_gpt_oss,  # Pass gpt_oss Flag
        )
    except Exception as e:
        if IS_KAGGLE_ENVIRONMENT:
            raise RuntimeError(
                f"Unsloth: GGUF conversion failed in Kaggle environment.\n"
                f"This is likely due to the 20GB disk space limit.\n"
                f"Try saving to /tmp directory or use a smaller model.\n"
                f"Error: {e}"
            )
        else:
            raise RuntimeError(f"Unsloth: GGUF conversion failed: {e}")

    # Step 9: Create Ollama modelfile
    modelfile_location = None
    ollama_success = False
    if all_file_locations:
        try:
            if is_vlm_update:
                modelfile = create_ollama_modelfile(tokenizer, base_model_name, ".")
            else:
                modelfile = create_ollama_modelfile(
                    tokenizer, base_model_name, all_file_locations[0]
                )
            if modelfile is not None:
                if is_vlm_update:
                    modelfile_location = os.path.join(save_directory, "Modelfile")
                else:
                    modelfile_location = os.path.join(os.getcwd(), "Modelfile")
                with open(modelfile_location, "w", encoding = "utf-8") as file:
                    file.write(modelfile)
                ollama_success = True
        except Exception as e:
            print(f"Warning: Could not create Ollama modelfile: {e}")

    # Step 10: Show BOS token warning if applicable
    if fix_bos_token:
        logger.warning(
            "Unsloth: ##### The current model auto adds a BOS token.\n"
            "Unsloth: ##### We removed it in GGUF's chat template for you."
        )

    if is_vlm_update:
        print("\n")
        print(
            f"Unsloth: example usage for Multimodal LLMs: llama-mtmd-cli -m {all_file_locations[0]} --mmproj {all_file_locations[-1]}"
        )
        print("Unsloth: load image inside llama.cpp runner: /image test_image.jpg")
        print("Unsloth: Prompt model to describe the image")
    else:
        print(
            f'Unsloth: example usage for text only LLMs: llama-cli --model {all_file_locations[0]} -p "why is the sky blue?"'
        )
    if ollama_success and is_vlm_update:
        print(f"Unsloth: Saved Ollama Modelfile to {modelfile_location}")
        print(
            "Unsloth: convert model to ollama format by running - ollama create model_name -f ./Modelfile - inside save directory."
        )
    if ollama_success and not is_vlm_update:
        print("Unsloth: Saved Ollama Modelfile to current directory")
        print(
            "Unsloth: convert model to ollama format by running - ollama create model_name -f ./Modelfile - inside current directory."
        )

    # Return a dict with all needed info for push_to_hub
    return {
        "save_directory": save_directory,
        "gguf_files": all_file_locations,
        "modelfile_location": modelfile_location,
        "want_full_precision": want_full_precision,
        "is_vlm": is_vlm_update,
        "fix_bos_token": fix_bos_token,
    }


def unsloth_push_to_hub_gguf(
    self,
    repo_id: str,
    tokenizer = None,
    quantization_method = "fast_quantized",
    first_conversion: str = None,
    use_temp_dir: Optional[bool] = None,
    commit_message: Optional[str] = "Trained with Unsloth",
    private: Optional[bool] = None,
    token: Union[bool, str, None] = None,
    max_shard_size: Union[int, str, None] = "5GB",
    create_pr: bool = False,
    safe_serialization: bool = True,
    revision: str = None,
    commit_description: str = "Upload model trained with Unsloth 2x faster",
    tags: Optional[List[str]] = None,
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.85,
):
    """
    Same as .push_to_hub(...) except 4bit weights are auto
    converted to float16 then converted to GGUF / llama.cpp format.

    Choose for `quantization_method` to be:
    "not_quantized"  : "Recommended. Fast conversion. Slow inference, big files.",
    "fast_quantized" : "Recommended. Fast conversion. OK inference, OK file size.",
    "quantized"      : "Recommended. Slow conversion. Fast inference, small files.",
    "f32"     : "Not recommended. Retains 100% accuracy, but super slow and memory hungry.",
    "f16"     : "Fastest conversion + retains 100% accuracy. Slow and memory hungry.",
    "q8_0"    : "Fast conversion. High resource use, but generally acceptable.",
    "q4_k_m"  : "Recommended. Uses Q6_K for half of the attention.wv and feed_forward.w2 tensors, else Q4_K",
    "q5_k_m"  : "Recommended. Uses Q6_K for half of the attention.wv and feed_forward.w2 tensors, else Q5_K",
    "q2_k"    : "Uses Q4_K for the attention.vw and feed_forward.w2 tensors, Q2_K for the other tensors.",
    "q3_k_l"  : "Uses Q5_K for the attention.wv, attention.wo, and feed_forward.w2 tensors, else Q3_K",
    "q3_k_m"  : "Uses Q4_K for the attention.wv, attention.wo, and feed_forward.w2 tensors, else Q3_K",
    "q3_k_s"  : "Uses Q3_K for all tensors",
    "q4_0"    : "Original quant method, 4-bit.",
    "q4_1"    : "Higher accuracy than q4_0 but not as high as q5_0. However has quicker inference than q5 models.",
    "q4_k_s"  : "Uses Q4_K for all tensors",
    "q5_0"    : "Higher accuracy, higher resource usage and slower inference.",
    "q5_1"    : "Even higher accuracy, resource usage and slower inference.",
    "q5_k_s"  : "Uses Q5_K for all tensors",
    "q6_k"    : "Uses Q8_K for all tensors",
    """
    if tokenizer is None:
        raise ValueError("Unsloth: Saving to GGUF must have a tokenizer.")

    # Step 1: Determine save directory
    model_name = repo_id.split("/")[-1] if "/" in repo_id else repo_id

    if use_temp_dir or use_temp_dir is None:
        import tempfile

        temp_dir = tempfile.mkdtemp(prefix = "unsloth_gguf_")
        save_directory = temp_dir
        cleanup_temp = True
    else:
        save_directory = model_name  # Use model name, not repo_id
        cleanup_temp = False

    # Step 2: Call save_pretrained_gguf to do the conversion
    print(f"Unsloth: Converting model to GGUF format...")

    try:
        # Call save_pretrained_gguf - it returns all the info we need
        result = unsloth_save_pretrained_gguf(
            self = self,
            save_directory = save_directory,
            tokenizer = tokenizer,
            quantization_method = quantization_method,
            first_conversion = first_conversion,
            push_to_hub = False,  # Never push from here
            token = None,  # Don't need token for local save
            max_shard_size = max_shard_size,
            safe_serialization = safe_serialization,
            temporary_location = temporary_location,
            maximum_memory_usage = maximum_memory_usage,
        )

        # Extract results
        all_file_locations = result["gguf_files"]
        modelfile_location = result["modelfile_location"]
        want_full_precision = result["want_full_precision"]
        is_vlm = result["is_vlm"]
        fix_bos_token = result["fix_bos_token"]
        actual_save_directory = result["save_directory"]

    except Exception as e:
        if cleanup_temp:
            import shutil

            try:
                shutil.rmtree(save_directory)
            except:
                pass
        raise RuntimeError(f"Failed to convert model to GGUF: {e}")

    # Step 3: Upload to HuggingFace Hub
    print("Unsloth: Uploading GGUF to Huggingface Hub...")

    try:
        from huggingface_hub import HfApi

        api = HfApi(token = token)

        # Get full repo id
        if "/" not in repo_id:
            username = api.whoami()["name"]
            full_repo_id = f"{username}/{repo_id}"
        else:
            full_repo_id = repo_id

        # Create repo
        api.create_repo(
            repo_id = full_repo_id,
            repo_type = "model",
            private = private,
            exist_ok = True,
        )

        # Upload GGUF files
        for file_location in all_file_locations:
            original_name = os.path.basename(file_location)
            # Replace temp directory name with proper model name
            if cleanup_temp and "unsloth_gguf_" in original_name:
                # Extract the quantization part (e.g., ".Q8_0.gguf" or ".Q8_0-mmproj.gguf")
                quant_suffix = (
                    original_name.split(".", 1)[1]
                    if "." in original_name
                    else original_name
                )
                proper_name = f"{model_name}.{quant_suffix}"
            else:
                proper_name = original_name.replace(
                    os.path.basename(save_directory), model_name
                )

            print(f"Uploading {proper_name}...")

            api.upload_file(
                path_or_fileobj = file_location,
                path_in_repo = proper_name,
                repo_id = full_repo_id,
                repo_type = "model",
                commit_message = commit_message,
                commit_description = commit_description,
                create_pr = create_pr,
                revision = revision,
            )

        # Upload config.json if exists
        config_path = os.path.join(actual_save_directory, "config.json")
        if os.path.exists(config_path):
            print("Uploading config.json...")
            api.upload_file(
                path_or_fileobj = config_path,
                path_in_repo = "config.json",
                repo_id = full_repo_id,
                repo_type = "model",
                commit_message = f"{commit_message} - config",
                create_pr = create_pr,
                revision = revision,
            )

        # Upload Modelfile if exists
        if modelfile_location and os.path.exists(modelfile_location):
            print("Uploading Ollama Modelfile...")
            api.upload_file(
                path_or_fileobj = modelfile_location,
                path_in_repo = "Modelfile",
                repo_id = full_repo_id,
                repo_type = "model",
                commit_message = f"{commit_message} - Ollama Modelfile",
                create_pr = create_pr,
                revision = revision,
            )

        # Create and upload README
        readme_content = f"""---
tags:
- gguf
- llama.cpp
- unsloth
{"- vision-language-model" if is_vlm else ""}
---

# {repo_id.split("/")[-1]} - GGUF

This model was finetuned and converted to GGUF format using [Unsloth](https://github.com/unslothai/unsloth).

**Example usage**:
- For text only LLMs:    **llama-cli** **--hf** repo_id/model_name **-p** "why is the sky blue?"
- For multimodal models: **llama-mtmd-cli** **-m** model_name.gguf **--mmproj** mmproj_file.gguf

## Available Model files:
"""
        for file in all_file_locations:
            # Fix filename in README too
            original_name = os.path.basename(file)
            if cleanup_temp and "unsloth_gguf_" in original_name:
                quant_suffix = (
                    original_name.split(".", 1)[1]
                    if "." in original_name
                    else original_name
                )
                proper_name = f"{model_name}.{quant_suffix}"
            else:
                proper_name = original_name.replace(
                    os.path.basename(save_directory), model_name
                )
            readme_content += f"- `{proper_name}`\n"

        # Special note for VLM with Modelfile
        if is_vlm and modelfile_location:
            readme_content += "\n## ⚠️ Ollama Note for Vision Models\n"
            readme_content += "**Important:** Ollama currently does not support separate mmproj files for vision models.\n\n"
            readme_content += "To create an Ollama model from this vision model:\n"
            readme_content += "1. Place the `Modelfile` in the same directory as the finetuned bf16 merged model\n"
            readme_content += "3. Run: `ollama create model_name -f ./Modelfile`\n"
            readme_content += "   (Replace `model_name` with your desired name)\n\n"
            readme_content += (
                "This will create a unified bf16 model that Ollama can use.\n"
            )
        elif modelfile_location:
            readme_content += "\n## Ollama\n"
            readme_content += "An Ollama Modelfile is included for easy deployment.\n"

        if fix_bos_token:
            readme_content += "\n## Note\n"
            readme_content += (
                "The model's BOS token behavior was adjusted for GGUF compatibility.\n"
            )

        readme_path = os.path.join(actual_save_directory, "README.md")
        with open(readme_path, "w") as f:
            f.write(readme_content)

        api.upload_file(
            path_or_fileobj = readme_path,
            path_in_repo = "README.md",
            repo_id = full_repo_id,
            repo_type = "model",
            commit_message = "Add README",
            create_pr = create_pr,
            revision = revision,
        )

        print(
            f"Unsloth: Successfully uploaded GGUF to https://huggingface.co/{full_repo_id}"
        )

        # Add tags
        if tags is None:
            tags = []
        tags.extend(["gguf", "llama-cpp", "unsloth"])
        if is_vlm:
            tags.append("vision-language-model")

        try:
            api.add_tags(
                repo_id = full_repo_id,
                tags = tags,
                repo_type = "model",
            )
        except:
            pass

    except Exception as e:
        raise RuntimeError(f"Failed to upload to Hugging Face Hub: {e}")

    finally:
        # Clean up temporary directory
        if cleanup_temp and os.path.exists(save_directory):
            print("Unsloth: Cleaning up temporary files...")
            import shutil

            try:
                shutil.rmtree(save_directory)
            except:
                pass

    return full_repo_id


# Corrected function to save LoRA to a custom directory
def save_lora_to_custom_dir(model, tokenizer, save_directory):
    # Create the custom directory if it doesn't exist
    os.makedirs(save_directory, exist_ok = True)

    # Call the unsloth_save_model function with the custom directory
    unsloth_save_model(
        model,
        tokenizer,
        save_directory = save_directory,
        save_method = "lora",
        push_to_hub = False,
    )


# Corrected method within the model class to convert LoRA to GGML and push to Hugging Face Hub
def unsloth_convert_lora_to_ggml_and_push_to_hub(
    self,
    tokenizer,
    repo_id: str,
    use_temp_dir: Optional[bool] = None,
    commit_message: Optional[str] = "Converted LoRA to GGML with Unsloth",
    private: Optional[bool] = None,
    token: Union[bool, str, None] = None,
    create_pr: bool = False,
    revision: str = None,
    commit_description: str = "Convert LoRA to GGML format using Unsloth",
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.85,
):
    if not os.path.exists("llama.cpp"):
        if IS_KAGGLE_ENVIRONMENT:
            python_install = install_python_non_blocking(["protobuf"])
            python_install.wait()
            install_llama_cpp_blocking(use_cuda = False)
            makefile = None
        else:
            git_clone = install_llama_cpp_clone_non_blocking()
            python_install = install_python_non_blocking(["protobuf"])
            git_clone.wait()
            makefile = install_llama_cpp_make_non_blocking()
            python_install.wait()
    else:
        makefile = None

    for _ in range(3):
        gc.collect()

    lora_directory_push = "lora-to-ggml-push"
    save_lora_to_custom_dir(self, tokenizer, lora_directory_push)

    model_type = self.config.model_type
    output_file = os.path.join(lora_directory_push, "ggml-adapter-model.bin")

    print(
        f"Unsloth: Converting auto-saved LoRA adapters at {lora_directory_push} to GGML format."
    )
    print(f"The output file will be {output_file}")

    command = f"python3 llama.cpp/convert-lora-to-ggml.py {lora_directory_push} {output_file} llama"

    try:
        with subprocess.Popen(
            command,
            shell = True,
            stdout = subprocess.PIPE,
            stderr = subprocess.PIPE,
            bufsize = 1,
            universal_newlines = True,
        ) as sp:
            for line in sp.stdout:
                print(line, end = "", flush = True)
            for line in sp.stderr:
                print(line, end = "", flush = True)
            sp.wait()
            if sp.returncode != 0:
                raise subprocess.CalledProcessError(sp.returncode, command)
    except subprocess.CalledProcessError as e:
        print(f"Error: Conversion failed with return code {e.returncode}")
        return

    print(f"Unsloth: Conversion completed! Output file: {output_file}")

    print("Unsloth: Uploading GGML file to Hugging Face Hub...")
    username = upload_to_huggingface(
        self,
        repo_id,
        token,
        "GGML converted LoRA",
        "ggml",
        output_file,
        None,
        private,
    )
    link = f"{repo_id.lstrip('/')}"
    print("Unsloth: Done.")
    print(f"Converted LoRA to GGML and uploaded to https://huggingface.co/{link}")
    print(
        "\nThis GGML making function was made by Maheswar. Ping him @Maheswar on the Unsloth Discord or on HuggingFace (@mahiatlinux) if you like this!"
    )


def unsloth_convert_lora_to_ggml_and_save_locally(
    self,
    save_directory: str,  # Added parameter for the folder name
    tokenizer,
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.85,
):
    if not os.path.exists("llama.cpp"):
        if IS_KAGGLE_ENVIRONMENT:
            python_install = install_python_non_blocking(["protobuf"])
            python_install.wait()
            install_llama_cpp_blocking(use_cuda = False)
            makefile = None
        else:
            git_clone = install_llama_cpp_clone_non_blocking()
            python_install = install_python_non_blocking(["protobuf"])
            git_clone.wait()
            makefile = install_llama_cpp_make_non_blocking()
            python_install.wait()
    else:
        makefile = None

    for _ in range(3):
        gc.collect()

    # Use the provided save_directory for local saving
    save_lora_to_custom_dir(self, tokenizer, save_directory)

    model_type = self.config.model_type
    output_file = os.path.join(save_directory, "ggml-adapter-model.bin")

    print(
        f"Unsloth: Converting auto-saved LoRA adapters at {save_directory} to GGML format."
    )
    print(f"The output file will be {output_file}")

    command = f"python3 llama.cpp/convert-lora-to-ggml.py {save_directory} {output_file} llama"

    try:
        with subprocess.Popen(
            command,
            shell = True,
            stdout = subprocess.PIPE,
            stderr = subprocess.PIPE,
            bufsize = 1,
            universal_newlines = True,
        ) as sp:
            for line in sp.stdout:
                print(line, end = "", flush = True)
            for line in sp.stderr:
                print(line, end = "", flush = True)
            sp.wait()
            if sp.returncode != 0:
                raise subprocess.CalledProcessError(sp.returncode, command)
    except subprocess.CalledProcessError as e:
        print(f"Error: Conversion failed with return code {e.returncode}")
        return
    print("Unsloth: Done.")
    print(f"Unsloth: Conversion completed! Output file: {output_file}")
    print(
        "\nThis GGML making function was made by Maheswar. Ping him @Maheswar on the Unsloth Discord or on HuggingFace (@mahiatlinux) if you like this!"
    )


from .models.loader_utils import get_model_name
from unsloth_zoo.saving_utils import (
    merge_and_overwrite_lora,
    prepare_saving,
)
from unsloth_zoo.llama_cpp import (
    install_llama_cpp,
    convert_to_gguf as _convert_to_gguf,
)


@torch.inference_mode
def save_to_gguf_generic(
    model,
    save_directory,
    tokenizer,
    quantization_method = None,
    quantization_type = "Q8_0",
    repo_id = None,
    token = None,
):
    if token is None and repo_id is not None:
        token = get_token()
    if repo_id is not None and token is None:
        raise RuntimeError("Unsloth: Please specify a token for uploading!")

    if not os.path.exists(os.path.join("llama.cpp", "unsloth_convert_hf_to_gguf.py")):
        install_llama_cpp(just_clone_repo = True)

    # Use old style quantization_method
    new_quantization_methods = []
    if quantization_method is not None:
        # Convert quantization_method to list
        if isinstance(quantization_method, list):
            pass
        elif isinstance(quantization_method, str):
            quantization_method = [
                quantization_method,
            ]
        elif isinstance(quantization_method, tuple):
            quantization_method = list(quantization_method)
        else:
            raise TypeError(
                "Unsloth: quantization_method can only be a string or a list of strings"
            )
        for i, quant_method in enumerate(quantization_method):
            quant_method = quant_method.lower()
            if quant_method == "not_quantized":
                quant_method = "f16"
            elif quant_method == "fast_quantized":
                quant_method = "q8_0"
            elif quant_method == "quantized":
                quant_method = "q4_k_m"
            elif quant_method is None:
                quant_method = "q8_0"
            new_quantization_methods.append(quant_method.lower())
    else:
        new_quantization_methods.append(quantization_type.lower())
    # Check if wrong method
    for quant_method in new_quantization_methods:
        if quant_method not in ALLOWED_QUANTS.keys():
            error = f"Unsloth: Quant method = [{quant_method}] not supported. Choose from below:\n"
            for key, value in ALLOWED_QUANTS.items():
                error += f"[{key}] => {value}\n"
            raise RuntimeError(error)

    # Go through all types and save individually - somewhat inefficient
    # since we save F16 / BF16 multiple times
    for quantization_type in new_quantization_methods:
        metadata = _convert_to_gguf(
            save_directory,
            print_output = True,
            quantization_type = quantization_type,
        )
        if repo_id is not None:
            prepare_saving(
                model,
                repo_id,
                push_to_hub = True,
                max_shard_size = "50GB",
                private = True,
                token = token,
            )

            from huggingface_hub import HfApi

            api = HfApi(token = token)
            api.upload_folder(
                folder_path = save_directory,
                repo_id = repo_id,
                repo_type = "model",
                allow_patterns = ["*.gguf"],
            )
    return metadata


@torch.inference_mode
def unsloth_generic_save(
    model,
    tokenizer,
    save_directory: Union[str, os.PathLike] = "unsloth_finetuned_merge",
    save_method: str = "lora",  # ["lora", "merged_16bit", "merged_4bit"]
    push_to_hub: bool = False,
    token: Optional[Union[str, bool]] = None,
    is_main_process: bool = True,
    state_dict: Optional[dict] = None,
    save_function: Callable = torch.save,
    max_shard_size: Union[int, str] = "5GB",
    safe_serialization: bool = True,
    variant: Optional[str] = None,
    save_peft_format: bool = True,
    # Push to hub
    use_temp_dir: Optional[bool] = None,
    commit_message: Optional[str] = "Trained with Unsloth",
    private: Optional[bool] = None,
    create_pr: bool = False,
    revision: str = None,
    commit_description: str = "Upload model trained with Unsloth 2x faster",
    tags: List[str] = None,
    # Our functions
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.9,
):
    if token is None and push_to_hub:
        token = get_token()

    if save_method == "merged_4bit":
        raise RuntimeError(
            "Unsloth: Merging into 4bit will cause your model to lose accuracy if you plan\n"
            "to merge to GGUF or others later on. I suggest you to do this as a final step\n"
            "if you're planning to do multiple saves.\n"
            "If you are certain, change `save_method` to `merged_4bit_forced`."
        )
    elif save_method == "merged_4bit_forced":
        save_method = "merged_4bit"

    merge_and_overwrite_lora(
        get_model_name,
        model = model,
        tokenizer = tokenizer,
        save_directory = save_directory,
        push_to_hub = push_to_hub,
        private = private,
        token = token,
        save_method = save_method,
        output_dtype = None,
        low_disk_space_usage = True,
        use_temp_file = False,
    )
    return


def unsloth_generic_save_pretrained_merged(
    self,
    save_directory: Union[str, os.PathLike],
    tokenizer = None,
    save_method: str = "merged_16bit",  # ["lora", "merged_16bit", "merged_4bit"]
    push_to_hub: bool = False,
    token: Optional[Union[str, bool]] = None,
    is_main_process: bool = True,
    state_dict: Optional[dict] = None,
    save_function: Callable = torch.save,
    max_shard_size: Union[int, str] = "5GB",
    safe_serialization: bool = True,
    variant: Optional[str] = None,
    save_peft_format: bool = True,
    tags: List[str] = None,
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.75,
):
    """
    Same as .push_to_hub(...) except 4bit weights are auto
    converted to float16 with as few overhead as possible.

    Choose for `save_method` to be either:
    1. `16bit`: Merge LoRA into float16 weights. Useful for GGUF / llama.cpp.
    2.  `4bit`: Merge LoRA into int4 weights. Useful for DPO / HF inference.
    3.  `lora`: Save LoRA adapters with no merging. Useful for HF inference.
    """
    if tokenizer is None:
        logger.warning_once(
            "Unsloth: You're not saving a tokenizer as well?\n"
            "You can do it separately via `tokenizer.save_pretrained(...)`"
        )

    arguments = dict(locals())
    arguments["model"] = self
    del arguments["self"]
    unsloth_generic_save(**arguments)
    for _ in range(3):
        gc.collect()


def unsloth_generic_push_to_hub_merged(
    self,
    repo_id: str,
    tokenizer = None,
    save_method: str = "merged_16bit",  # ["lora", "merged_16bit", "merged_4bit"]
    use_temp_dir: Optional[bool] = None,
    commit_message: Optional[str] = "Trained with Unsloth",
    private: Optional[bool] = None,
    token: Union[bool, str, None] = None,
    max_shard_size: Union[int, str, None] = "5GB",
    create_pr: bool = False,
    safe_serialization: bool = True,
    revision: str = None,
    commit_description: str = "Upload model trained with Unsloth 2x faster",
    tags: Optional[List[str]] = None,
    temporary_location: str = "_unsloth_temporary_saved_buffers",
    maximum_memory_usage: float = 0.75,
):
    """
    Same as .push_to_hub(...) except 4bit weights are auto
    converted to float16 with as few overhead as possible.

    Choose for `save_method` to be either:
    1. `16bit`: Merge LoRA into float16 weights. Useful for GGUF / llama.cpp.
    2.  `4bit`: Merge LoRA into int4 weights. Useful for DPO / HF inference.
    3.  `lora`: Save LoRA adapters with no merging. Useful for HF inference.
    """
    if tokenizer is None:
        logger.warning_once(
            "Unsloth: You're not saving a tokenizer as well?\n"
            "You can do it separately via `tokenizer.push_to_hub(...)`"
        )

    arguments = dict(locals())
    arguments["model"] = self
    arguments["save_directory"] = repo_id
    arguments["push_to_hub"] = True
    del arguments["self"]
    del arguments["repo_id"]
    unsloth_generic_save(**arguments)
    for _ in range(3):
        gc.collect()


def _unsloth_save_torchao_with_attached_config(
    model,
    save_directory: Union[str, os.PathLike],
    tokenizer,
    push_to_hub: bool = False,
    token: Optional[Union[str, bool]] = None,
):
    """Save a QAT-trained model by converting fake-quantized weights to real quantized weights."""
    # Convert QAT fake-quantized weights to real quantized weights
    _convert_torchao_model(model)
    # PEFT models also might come here, so parse it
    if isinstance(model, PeftModelForCausalLM):
        _unsloth_save_torchao_with_given_config(
            model = model,
            save_directory = save_directory,
            tokenizer = tokenizer,
            torchao_config = model.config.quantization_config,
            push_to_hub = push_to_hub,
            token = token,
        )
        return

    # TorchAO does not support safe_serialization reliably
    safe_serialization = False

    if push_to_hub:
        model.push_to_hub(
            save_directory, safe_serialization = safe_serialization, token = token
        )
        tokenizer.push_to_hub(save_directory, token = token)
    else:
        model.save_pretrained(save_directory, safe_serialization = safe_serialization)
        tokenizer.save_pretrained(save_directory)


def _unsloth_save_torchao_with_given_config(
    model,
    save_directory: Union[str, os.PathLike],
    tokenizer,
    torchao_config,
    push_to_hub: bool = False,
    token: Optional[Union[str, bool]] = None,
):
    """Quantizes the model with torchao and saves a torchao quantized checkpoint

    Args
      `save_directory`: local folder path or huggingface hub ID when `push_to_hub` is set to True, e.g. `my_model`
      `torchao_config` (TorchAOBaseConfig): configuration for torchao quantization, full list: https://docs.pytorch.org/ao/main/api_ref_quantization.html#inference-apis-for-quantize
      `push_to_hub` (bool): whether to push the checkpoint to huggingface hub or save locally
    """

    if push_to_hub:
        assert token is not None, "Unsloth: Please specify a token for uploading!"

    assert (
        torchao_config is not None
    ), "Unsloth: Please specify a torchao_config for post-training quantization!"

    # first merge the lora weights
    arguments = dict(locals())
    arguments["push_to_hub"] = False  # We save ourselves
    arguments["save_method"] = "merged_16bit"  # Must be 16bit
    del arguments["torchao_config"]

    if not isinstance(model, PeftModelForCausalLM) and not isinstance(model, PeftModel):
        model.save_pretrained(save_directory)
        tokenizer.save_pretrained(save_directory)
    else:
        unsloth_generic_save(**arguments)

    for _ in range(3):
        gc.collect()

    from transformers import (
        AutoModelForCausalLM,
        AutoTokenizer,
        TorchAoConfig,
        AutoModelForImageTextToText,
        AutoProcessor,
    )
    from torchao import quantize_

    if isinstance(torchao_config, TorchAoConfig):
        quantization_config = torchao_config
    else:
        quantization_config = TorchAoConfig(quant_type = torchao_config)

    # Determine if this is a VLM
    is_vlm = False
    if hasattr(model, "config") and hasattr(model.config, "architectures"):
        is_vlm = any(
            x.endswith(("ForConditionalGeneration", "ForVisionText2Text"))
            for x in model.config.architectures
        )
        is_vlm = is_vlm or hasattr(model.config, "vision_config")
    auto_model = AutoModelForImageTextToText if is_vlm else AutoModelForCausalLM
    auto_processor = AutoProcessor if is_vlm else AutoTokenizer

    tokenizer = auto_processor.from_pretrained(save_directory)

    # TorchAO must only use bfloat16 for loading (float16 fails)
    if HAS_TORCH_DTYPE:
        kwargs = {"torch_dtype": torch.bfloat16}
    else:
        kwargs = {"dtype": torch.bfloat16}

    # Reload with quantization applied
    quantized_model = auto_model.from_pretrained(
        save_directory,
        device_map = "auto",
        quantization_config = quantization_config,
        **kwargs,
    )

    torchao_save_directory = save_directory + "-torchao"

    # TorchAO does not support safe_serialization right now 0.14.0 seems broken!
    safe_serialization = Version(importlib_version("torchao")) > Version("0.14.0")
    safe_serialization = False

    if push_to_hub:
        quantized_model.push_to_hub(
            torchao_save_directory, safe_serialization = safe_serialization, token = token
        )
        tokenizer.push_to_hub(torchao_save_directory, token = token)
    else:
        quantized_model.save_pretrained(
            torchao_save_directory, safe_serialization = safe_serialization
        )
        tokenizer.save_pretrained(torchao_save_directory)

    # Clean up the intermediate unquantized model
    if os.path.exists(save_directory):
        try:
            shutil.rmtree(save_directory)
        except:
            pass


def unsloth_save_pretrained_torchao(
    self,
    save_directory: Union[str, os.PathLike],
    tokenizer = None,
    torchao_config = None,
    push_to_hub: bool = False,
    token: Optional[Union[str, bool]] = None,
):
    """Saves a torchao quantized model checkpoint.

    This function handles two mutually exclusive workflows:

    1. **QAT (Quantization-Aware Training)**: If the model was trained with `qat_scheme`
       parameter, do NOT pass `torchao_config`. The function will convert the QAT
       fake-quantized weights to real quantized weights and save directly.

    2. **PTQ (Post-Training Quantization)**: If you want to apply quantization to a
       regular model, pass a `torchao_config`. The model must NOT have been trained
       with `qat_scheme`.

    Args:
      `save_directory`: local folder path or huggingface hub ID when `push_to_hub` is True
      `tokenizer`: the tokenizer to save alongside the model
      `torchao_config` (TorchAOBaseConfig): configuration for torchao quantization.
          Required for PTQ, must be None for QAT models.
          Options: https://docs.pytorch.org/ao/main/api_ref_quantization.html#inference-apis-for-quantize
      `push_to_hub` (bool): whether to push to huggingface hub or save locally
      `token`: HuggingFace token for pushing to hub
    """
    if token is None and push_to_hub:
        token = get_token()

    has_qat_config = (
        hasattr(self, "_torchao_config") and self._torchao_config is not None
    )

    if torchao_config is not None:
        # PTQ path: user provided a config, model must NOT have QAT config unless PEFT
        assert not has_qat_config, (
            "Unsloth: You passed `torchao_config` but this model was trained with `qat_scheme`. "
            "For QAT models, do not pass `torchao_config` - the quantization config is already "
            "attached to the model from training."
        )
        _unsloth_save_torchao_with_given_config(
            model = self,
            save_directory = save_directory,
            tokenizer = tokenizer,
            torchao_config = torchao_config,
            push_to_hub = push_to_hub,
            token = token,
        )
    else:
        # QAT path: no config provided, model must have QAT config
        assert has_qat_config, (
            "Unsloth: No `torchao_config` provided and model was not trained with `qat_scheme`. "
            "Either train with `qat_scheme` parameter, or provide a `torchao_config` for "
            "post-training quantization."
        )
        _unsloth_save_torchao_with_attached_config(
            model = self,
            save_directory = save_directory,
            tokenizer = tokenizer,
            push_to_hub = push_to_hub,
            token = token,
        )

    for _ in range(3):
        gc.collect()


def not_implemented_save(*args, **kwargs):
    raise NotImplementedError(
        "Unsloth: Sorry GGUF is currently not supported for vision models!"
    )


def patch_saving_functions(model, vision = False):
    import inspect
    import types
    from typing import Callable, Optional, Union, List

    # And now re add our saving methods!
    if model.push_to_hub.__name__ == "unsloth_push_to_hub":
        original_push_to_hub = model.original_push_to_hub
    else:
        original_push_to_hub = model.push_to_hub

    signature = str(inspect.signature(original_push_to_hub)).replace("NoneType", "None")
    signature = signature[1:]
    signature = re.sub("<function save at .+?>", "torch.save", signature)
    docs = original_push_to_hub.__doc__.encode("utf-8").decode("utf-8")

    push_to_hub_text = f'''def unsloth_push_to_hub(self, {signature}:
    """
    {docs}
    """
    arguments = dict(locals())
    del arguments["self"]
    if "tags" in arguments and arguments["tags"] is not None:
        assert(isinstance(arguments["tags"], (list, tuple)))
        arguments["tags"] = list(arguments["tags"]) + ["unsloth",]
    elif "tags" in arguments:
        arguments["tags"] = ["unsloth",]
    elif hasattr(self, "add_model_tags"):
        self.add_model_tags(["unsloth",])

    if "commit_message" in arguments:
        commit_message = arguments["commit_message"]
        if commit_message is not None:
            if not commit_message.endswith(" "): commit_message += " "
            if "Unsloth" not in commit_message:
                commit_message += "(Trained with Unsloth)"
        else:
            commit_message = "Upload model trained with Unsloth"
        arguments["commit_message"] = commit_message

    if "commit_description" in arguments:
        commit_description = arguments["commit_description"]
        if commit_description is not None:
            if not commit_description.endswith(" "): commit_description += " "
            if "Unsloth" not in commit_description:
                commit_description += "(Trained with Unsloth 2x faster)"
        else:
            commit_description = "Upload model trained with Unsloth 2x faster"
        arguments["commit_description"] = commit_description

    # Update model tag
    if hasattr(self, "config"):
        _ = upload_to_huggingface(
            self, arguments["repo_id"], arguments["token"],
            "finetuned", "trl", file_location = None,
            old_username = None, private = arguments["private"],
        )
    pass

    try:
        self.original_push_to_hub(**arguments)
    except:
        del arguments["tags"]
        self.original_push_to_hub(**arguments)
    pass

    if hasattr(self, "config"):
        print("Saved model to https://huggingface.co/" + arguments["repo_id"])
    pass
    '''
    exec(push_to_hub_text, globals())

    original_model = model
    while True:
        # Check if push_to_hub exists before accessing its __name__
        if (
            hasattr(original_model, "push_to_hub")
            and original_model.push_to_hub.__name__ != "unsloth_push_to_hub"
        ):
            original_model.original_push_to_hub = original_model.push_to_hub
            original_model.push_to_hub = types.MethodType(
                unsloth_push_to_hub, original_model
            )
            if hasattr(original_model, "add_model_tags"):
                original_model.add_model_tags(
                    [
                        "unsloth",
                    ]
                )

        if hasattr(original_model, "model"):
            original_model = original_model.model
        else:
            break

    # Add saving methods to top level model
    if not vision:
        if hasattr(model, "config"):
            # Counteract tokenizers
            model.push_to_hub_merged = types.MethodType(
                unsloth_generic_push_to_hub_merged, model
            )
            model.save_pretrained_merged = types.MethodType(
                unsloth_generic_save_pretrained_merged, model
            )
            model.push_to_hub_gguf = types.MethodType(unsloth_push_to_hub_gguf, model)
            model.save_pretrained_gguf = types.MethodType(
                unsloth_save_pretrained_gguf, model
            )
            model.save_pretrained_torchao = types.MethodType(
                unsloth_save_pretrained_torchao, model
            )
            model.push_to_hub_ggml = types.MethodType(
                unsloth_convert_lora_to_ggml_and_push_to_hub, model
            )
            model.save_pretrained_ggml = types.MethodType(
                unsloth_convert_lora_to_ggml_and_save_locally, model
            )
    else:
        # Vision only 1 option
        model.push_to_hub_merged = types.MethodType(
            unsloth_generic_push_to_hub_merged, model
        )
        model.save_pretrained_merged = types.MethodType(
            unsloth_generic_save_pretrained_merged, model
        )
        model.push_to_hub_gguf = types.MethodType(unsloth_push_to_hub_gguf, model)
        model.save_pretrained_gguf = types.MethodType(
            unsloth_save_pretrained_gguf, model
        )
        model.save_pretrained_torchao = types.MethodType(
            unsloth_save_pretrained_torchao, model
        )
    return model
