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"""Export helpers: UAP → A2A JSON spec (stub implementation).

Generated by WhoMeta Unified Agent Protocol SDK
"""
from __future__ import annotations

from typing import Dict, Union

from unifiedagentprotocol.models.agent import Agent
from unifiedagentprotocol.models.tool import Tool


def agent_to_a2a(obj: Union[Agent, Tool]) -> Dict:  # noqa: D401 ANN401
    """Return a minimal A2A-compatible JSON object.

    This **stub** simply wraps the original dict representation under a `uap` key.
    A full A2A implementation would follow the official A2A schema.
    """

    payload = obj.dict(by_alias=True)
    return {
        "schema": "https://a2a.community/schema/0.1",
        "uap": payload,
    }
