exclude_none=exclude_none,
        )

    def __hash__(self) -> int:
        # Each ModelField is unique for our purposes, to allow making a dict from
        # ModelField to its JSON Schema.
        return id(self)


def _has_computed_fields(field: ModelField) -> bool:
    computed_fields = field._type_adapter.core_schema.get("schema", {}).get(
        "computed_fields", []
    )

def get_fields_from_routes(
    routes: Sequence[BaseRoute],
) -> list[ModelField]:
    body_fields_from_routes: list[ModelField] = []
    responses_from_routes: list[ModelField] = []
    request_fields_from_routes: list[ModelField] = []
    callback_flat_models: list[ModelField] = []
    for route in routes:
        if getattr(route, "include_in_schema", None) and isinstance(

from .utils import needs_py310


def test_model_field_default_required():
    from fastapi._compat import v2

    # For coverage
    field_info = FieldInfo(annotation=str)
    field = v2.ModelField(name="foo", field_info=field_info)
    assert field.default is Undefined


def test_complex():
    app = FastAPI()

    @app.post("/")
    def foo(foo: Union[str, list[int]]):
        return foo

from .shared import sequence_types as sequence_types
from .shared import value_is_sequence as value_is_sequence
from .v2 import BaseConfig as BaseConfig
from .v2 import ModelField as ModelField
from .v2 import PydanticSchemaGenerationError as PydanticSchemaGenerationError
from .v2 import RequiredParam as RequiredParam
from .v2 import Undefined as Undefined
from .v2 import UndefinedType as UndefinedType

    return func


@dataclass
class Dependant:
    path_params: list[ModelField] = field(default_factory=list)
    query_params: list[ModelField] = field(default_factory=list)
    header_params: list[ModelField] = field(default_factory=list)
    cookie_params: list[ModelField] = field(default_factory=list)
    body_params: list[ModelField] = field(default_factory=list)
    dependencies: list["Dependant"] = field(default_factory=list)

    try:
        return v2.ModelField(**kwargs)  # type: ignore[return-value,arg-type]
    except PydanticSchemaGenerationError:
        raise fastapi.exceptions.FastAPIError(
            _invalid_args_message.format(type_=type_)
        ) from None


def create_cloned_field(
    field: ModelField,
    *,

        flat_dependant.dependencies.extend(flat_sub.dependencies)

    return flat_dependant


def _get_flat_fields_from_params(fields: list[ModelField]) -> list[ModelField]:
    if not fields:
        return fields
    first_field = fields[0]
    if len(fields) == 1 and lenient_issubclass(first_field.type_, BaseModel):

def get_request_handler(
    dependant: Dependant,
    body_field: Optional[ModelField] = None,
    status_code: Optional[int] = None,
    response_class: Union[type[Response], DefaultPlaceholder] = Default(JSONResponse),
    response_field: Optional[ModelField] = None,
    response_model_include: Optional[IncEx] = None,
    response_model_exclude: Optional[IncEx] = None,