from .v2 import UndefinedType as UndefinedType
from .v2 import Url as Url
from .v2 import Validator as Validator
from .v2 import _regenerate_error_with_loc as _regenerate_error_with_loc
from .v2 import copy_field_info as copy_field_info
from .v2 import create_body_model as create_body_model
from .v2 import evaluate_forwardref as evaluate_forwardref
from .v2 import get_cached_model_fields as get_cached_model_fields

    Optional,
    Union,
    cast,
)

import anyio
from fastapi import params
from fastapi._compat import (
    ModelField,
    RequiredParam,
    Undefined,
    _regenerate_error_with_loc,
    copy_field_info,
    create_body_model,
    evaluate_forwardref,
    field_annotation_is_scalar,
    get_cached_model_fields,
    get_missing_field_error,
    is_bytes_field,
    is_bytes_sequence_field,
    is_scalar_field,

    return shared.is_bytes_or_nonable_bytes_annotation(field.type_)


def is_bytes_sequence_field(field: ModelField) -> bool:
    return shared.is_bytes_sequence_annotation(field.type_)


def copy_field_info(*, field_info: FieldInfo, annotation: Any) -> FieldInfo:
    cls = type(field_info)
    merged_field_info = cls.from_annotation(annotation)
    new_field_info = copy(field_info)