from typing import Annotated, TypeVar

from fastapi import Depends, FastAPI
from fastapi.testclient import TestClient

app = FastAPI()

T = TypeVar("T")

Dep = Annotated[T, Depends()]


class A:
    pass


class B:
    pass


@app.get("/a")
async def a(dep: Dep[A]):
    return {"cls": dep.__class__.__name__}


@app.get("/b")
async def b(dep: Dep[B]):
    return {"cls": dep.__class__.__name__}

from typing import TypeVar

import anyio.to_thread
from anyio import CapacityLimiter
from starlette.concurrency import iterate_in_threadpool as iterate_in_threadpool  # noqa
from starlette.concurrency import run_in_threadpool as run_in_threadpool  # noqa
from starlette.concurrency import (  # noqa
    run_until_first_complete as run_until_first_complete,
)

_T = TypeVar("_T")


@asynccontextmanager

import types
from enum import Enum
from typing import Any, Callable, Optional, TypeVar, Union

from pydantic import BaseModel

DecoratedCallable = TypeVar("DecoratedCallable", bound=Callable[..., Any])
UnionType = getattr(types, "UnionType", Union)
ModelNameMap = dict[Union[type[BaseModel], type[Enum]], str]
IncEx = Union[set[int], set[str], dict[int, Any], dict[str, Any]]

from collections.abc import Mapping
from typing import (
    Annotated,
    Any,
    BinaryIO,
    Callable,
    Optional,
    TypeVar,
    cast,
)

from annotated_doc import Doc
from pydantic import GetJsonSchemaHandler
from starlette.datastructures import URL as URL  # noqa: F401
from starlette.datastructures import Address as Address  # noqa: F401
from starlette.datastructures import FormData as FormData  # noqa: F401

        case WildcardType wildcard -> getActualClass(wildcard.getUpperBounds()[0], map);
        case TypeVariable<?> typeVar -> map.containsKey(typeVar) ? getActualClass(map.get(typeVar), map)
                : getActualClass(typeVar.getBounds()[0], map);
        case GenericArrayType arrayType -> {
            Class<?> componentClass = getActualClass(arrayType.getGenericComponentType(), map);

      }

      boolean isNullableTypeVariable(Type type) {
        if (!(type instanceof TypeVariable)) {
          return false;
        }
        TypeVariable<?> typeVar = (TypeVariable<?>) type;
        for (AnnotatedType bound : typeVar.getAnnotatedBounds()) {
          // Until Java 15, the isNullableTypeVariable case here won't help:
          // https://bugs.openjdk.org/browse/JDK-8202469

from collections.abc import Awaitable, Coroutine, Sequence
from enum import Enum
from typing import (
    Annotated,
    Any,
    Callable,
    Optional,
    TypeVar,
    Union,
)

from annotated_doc import Doc
from fastapi import routing
from fastapi.datastructures import Default, DefaultPlaceholder
from fastapi.exception_handlers import (
    http_exception_handler,
    request_validation_exception_handler,