def is_bytes_field(field: ModelField) -> bool:
    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)