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from __future__ import annotations
import typing as t
from contextvars import ContextVar
from werkzeug.local import LocalProxy
if t.TYPE_CHECKING: # pragma: no cover
from .app import Flask
from .ctx import _AppCtxGlobals
from .ctx import AppContext
from .ctx import RequestContext
from .sessions import SessionMixin
from .wrappers import Request
_no_app_msg = """\
Working outside of application context.
This typically means that you attempted to use functionality that needed
the current application. To solve this, set up an application context
with app.app_context(). See the documentation for more information.\
"""
_cv_app: ContextVar[AppContext] = ContextVar("flask.app_ctx")
app_ctx: AppContext = LocalProxy( # type: ignore[assignment]
_cv_app, unbound_message=_no_app_msg
)
current_app: Flask = LocalProxy( # type: ignore[assignment]
_cv_app, "app", unbound_message=_no_app_msg
)
g: _AppCtxGlobals = LocalProxy( # type: ignore[assignment]
_cv_app, "g", unbound_message=_no_app_msg
)
_no_req_msg = """\
Working outside of request context.
This typically means that you attempted to use functionality that needed
an active HTTP request. Consult the documentation on testing for
information about how to avoid this problem.\
"""
_cv_request: ContextVar[RequestContext] = ContextVar("flask.request_ctx")
request_ctx: RequestContext = LocalProxy( # type: ignore[assignment]
_cv_request, unbound_message=_no_req_msg
)
request: Request = LocalProxy( # type: ignore[assignment]
_cv_request, "request", unbound_message=_no_req_msg
)
session: SessionMixin = LocalProxy( # type: ignore[assignment]
_cv_request, "session", unbound_message=_no_req_msg
)
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