from typing import Any, List, Optional, Type, Union

from django.contrib.auth.backends import ModelBackend
from django.contrib.auth.base_user import AbstractBaseUser
from django.contrib.auth.models import AbstractUser, AnonymousUser
from django.core.handlers.wsgi import WSGIRequest
from django.db.models.base import Model
from django.db.models.options import Options
from django.http.request import HttpRequest

from .signals import user_logged_in, user_logged_out, user_login_failed

SESSION_KEY: str
BACKEND_SESSION_KEY: str
HASH_SESSION_KEY: str
REDIRECT_FIELD_NAME: str

def load_backend(path: str) -> ModelBackend: ...
def get_backends() -> List[ModelBackend]: ...
def authenticate(
    request: Any = ..., **credentials: Any
) -> Optional[AbstractBaseUser]: ...
def login(
    request: HttpRequest,
    user: AbstractBaseUser,
    backend: Optional[Union[Type[ModelBackend], str]] = ...,
) -> None: ...
def logout(request: HttpRequest) -> None: ...
def get_user_model() -> Type[Model]: ...
def get_user(
    request: HttpRequest
) -> Union[AbstractBaseUser, AnonymousUser]: ...
def get_permission_codename(action: str, opts: Options) -> str: ...
def update_session_auth_hash(
    request: WSGIRequest, user: AbstractUser
) -> None: ...

default_app_config: str