return field_annotation_is_sequence(annotation) and all(
        field_annotation_is_scalar(sub_annotation)
        for sub_annotation in get_args(annotation)
    )


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

def is_scalar_sequence_field(field: ModelField) -> bool:
    return shared.field_annotation_is_scalar_sequence(field.field_info.annotation)


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_)