import warnings
from collections import deque
from dataclasses import dataclass
from datetime import datetime, timezone
from decimal import Decimal
from enum import Enum
from math import isinf, isnan
from pathlib import PurePath, PurePosixPath, PureWindowsPath
from typing import Optional, TypedDict

import pytest
from fastapi._compat import Undefined
from fastapi.encoders import jsonable_encoder

from decimal import Decimal
from enum import Enum
from ipaddress import (
    IPv4Address,
    IPv4Interface,
    IPv4Network,
    IPv6Address,
    IPv6Interface,
    IPv6Network,
)
from pathlib import Path, PurePath
from re import Pattern
from types import GeneratorType
from typing import Annotated, Any, Callable, Optional, Union
from uuid import UUID

from annotated_doc import Doc

import logging
import random
import sys
import time
from pathlib import Path
from typing import Any, Union, cast

import httpx
from github import Github
from pydantic import BaseModel, SecretStr
from pydantic_settings import BaseSettings

awaiting_label = "awaiting-review"
lang_all_label = "lang-all"
approved_label = "approved-1"


github_graphql_url = "https://api.github.com/graphql"

import logging
import secrets
import subprocess
import time
from collections import Counter
from collections.abc import Container
from datetime import datetime, timedelta, timezone
from pathlib import Path
from typing import Any, Union

import httpx
import yaml
from github import Github
from pydantic import BaseModel, SecretStr
from pydantic_settings import BaseSettings

github_graphql_url = "https://api.github.com/graphql"

import json
import logging
import os
import re
import shutil
import subprocess
from html.parser import HTMLParser
from http.server import HTTPServer, SimpleHTTPRequestHandler
from multiprocessing import Pool
from pathlib import Path
from typing import Any, Optional, Union

import mkdocs.utils
import typer
import yaml
from jinja2 import Template
from ruff.__main__ import find_ruff_bin
from slugify import slugify as py_slugify

import json
import secrets
import subprocess
from collections.abc import Iterable
from functools import lru_cache
from os import sep as pathsep
from pathlib import Path
from typing import Annotated

import git
import typer
import yaml
from github import Github
from pydantic_ai import Agent
from rich import print

non_translated_sections = (
    f"reference{pathsep}",
    "release-notes.md",
    "fastapi-people.md",

        `tf.keras.optimizer.Optimizer.apply_gradients`. This allows custom
        gradient aggregation and processing aggregated gradients in custom
        training loop.
    *   Allow `pathlib.Path` paths for loading models via Keras API.
*   `tf.function`/AutoGraph:
    *   AutoGraph is now available in `ReplicaContext.merge_call`,
        `Strategy.extended.update` and `Strategy.extended.update_non_slot`.

* Temporary fix to Netlify previews not deployable from PRs from forks. PR [#1046](https://github.com/tiangolo/fastapi/pull/1046) by [@mariacamilagl](https://github.com/mariacamilagl).

## 0.49.0

* Fix encoding of `pathlib` paths in `jsonable_encoder`. PR [#978](https://github.com/tiangolo/fastapi/pull/978) by [@patrickmckenna](https://github.com/patrickmckenna).