from .shared import is_pydantic_v1_model_class as is_pydantic_v1_model_class
from .shared import is_pydantic_v1_model_instance as is_pydantic_v1_model_instance
from .shared import (
    is_uploadfile_or_nonable_uploadfile_annotation as is_uploadfile_or_nonable_uploadfile_annotation,
)
from .shared import (
    is_uploadfile_sequence_annotation as is_uploadfile_sequence_annotation,
)
from .shared import lenient_issubclass as lenient_issubclass

    if origin is Union or origin is UnionType:
        for arg in get_args(annotation):
            if lenient_issubclass(arg, bytes):
                return True
    return False


def is_uploadfile_or_nonable_uploadfile_annotation(annotation: Any) -> bool:
    if lenient_issubclass(annotation, UploadFile):
        return True
    origin = get_origin(annotation)
    if origin is Union or origin is UnionType:

    get_cached_model_fields,
    get_missing_field_error,
    is_bytes_field,
    is_bytes_sequence_field,
    is_scalar_field,
    is_scalar_sequence_field,
    is_sequence_field,
    is_uploadfile_or_nonable_uploadfile_annotation,
    is_uploadfile_sequence_annotation,
    lenient_issubclass,
    sequence_types,
    serialize_sequence_value,
    value_is_sequence,
)
from fastapi.background import BackgroundTasks