# This file was auto-generated by Fern from our API Definition.

import typing

import pydantic
from ..core.pydantic_utilities import IS_PYDANTIC_V2, UniversalBaseModel


class CustomAggregationPricingMetricInterface(UniversalBaseModel):
    """
    Custom aggregation for use cases not supported by the other aggregation types. Please email team@uselark.ai to enable this feature.
    """

    custom_expression: str = pydantic.Field()
    """
    Custom expression to compute the pricing metric. Please email team@uselark.ai to enable this feature.
    """

    if IS_PYDANTIC_V2:
        model_config: typing.ClassVar[pydantic.ConfigDict] = pydantic.ConfigDict(extra="allow", frozen=True)  # type: ignore # Pydantic v2
    else:

        class Config:
            frozen = True
            smart_union = True
            extra = pydantic.Extra.allow
