private static final Function<Type, String> SIMPLE_NAME_GETTER =
      new Function<Type, String>() {
        @Override
        public String apply(Type from) {
          if (from instanceof Class) {
            return ((Class<?>) from).getSimpleName();
          }
          return from.toString();
        }
      };

  private static String rootLocaleFormat(String format, Object... args) {

/// tip

FastAPI automatically generates **OpenAPI 3.1** specifications, so any tool you use must support this version.

///

## SDK Generators from FastAPI Sponsors { #sdk-generators-from-fastapi-sponsors }

This section highlights **venture-backed** and **company-supported** solutions from companies that sponsor FastAPI. These products provide **additional features** and **integrations** on top of high-quality generated SDKs.

    *   Upgrade Flatbuffers v2.0.5 from v1.12.0

*   `tf.keras`:

    *   `EinsumDense` layer is moved from experimental to core. Its import path
        is moved from `tf.keras.layers.experimental.EinsumDense` to
        `tf.keras.layers.EinsumDense`.
    *   Added `tf.keras.utils.audio_dataset_from_directory` utility to easily
        generate audio classification datasets from directories of `.wav` files.

}

plugins.withType<IdeaPlugin> {
    configure<IdeaModel> {
        module {
            val testFixtures = sourceSets.testFixtures.get()
            testSources.from(testFixtures.java.srcDirs)
            testSources.from(testFixtures.groovy.srcDirs)
            testResources.from(testFixtures.resources.srcDirs)
        }
    }

from fastapi import FastAPI
from fastapi.responses import FileResponse
from pydantic import BaseModel


class Item(BaseModel):
    id: str
    value: str


app = FastAPI()


@app.get(
    "/items/{item_id}",
    response_model=Item,
    responses={
        200: {
            "content": {"image/png": {}},
            "description": "Return the JSON item or an image.",
        }
    },
)

from typing import Union

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


@app.put("/items/{item_id}")

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None
    tags: set[str] = set()


@app.post(
    "/items/",
    response_model=Item,
    summary="Create an item",

   * @since 21.0
   */
  default void addAll(Iterable<Range<C>> ranges) {
    for (Range<C> range : ranges) {
      add(range);
    }
  }

  /**
   * Removes all of the ranges from the specified range set from this range set (optional
   * operation). After this operation, if {@code other.contains(c)}, {@code this.contains(c)} will
   * return {@code false}.
   *

/**
 * Represents a Kerberos AP-REQ (Application Request) message.
 * This class parses and contains the authentication request sent from a client to a server.
 */
public class KerberosApRequest {

    private byte apOptions;
    private KerberosTicket ticket;

    /**
     * Creates a Kerberos AP request from a token.
     *
     * @param token the Kerberos AP-REQ token
     * @param keys the Kerberos keys for decryption

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None
    tags: set[str] = set()


@app.post("/items/", response_model=Item, summary="Create an item")
async def create_item(item: Item):
    """
    Create an item with all the information: