lenient_issubclass,
)
from fastapi.datastructures import Default, DefaultPlaceholder
from fastapi.dependencies.models import Dependant
from fastapi.dependencies.utils import (
    _should_embed_body_fields,
    get_body_field,
    get_dependant,
    get_flat_dependant,
    get_parameterless_sub_dependant,
    get_typed_return_annotation,
    solve_dependencies,
)