Accessing Flask app context results in `RuntimeError: Working outside of application context.` about functions-framework-python HOT 4 CLOSED

$ pip install git+https://github.com/googlecloudplatform/functions-framework-python.git@fix/75

from flask import jsonify
import functions_framework

from flask import current_app as app
from flask_sqlalchemy import SQLAlchemy


def setup_context():
    app.config["SQLALCHEMY_DATABASE_URI"] = 'sqlite:///'
    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
    db = SQLAlchemy(app)
    return db


with app.app_context():
    db = setup_context()


@functions_framework.http
def posts_test(request):
    request_json = request.get_json(silent=True)
    request_args = request.args
    return jsonify({'success': True})

Traceback (most recent call last):
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/bin/functions-framework", line 8, in <module>
    sys.exit(_cli())
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/lib/python3.9/site-packages/click/core.py", line 1130, in __call__
    return self.main(*args, **kwargs)
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/lib/python3.9/site-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/lib/python3.9/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/lib/python3.9/site-packages/click/core.py", line 760, in invoke
    return __callback(*args, **kwargs)
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/lib/python3.9/site-packages/functions_framework/_cli.py", line 36, in _cli
    app = create_app(target, source, signature_type)
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/lib/python3.9/site-packages/functions_framework/__init__.py", line 353, in create_app
    spec.loader.exec_module(source_module)
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/Users/dv/Library/CloudStorage/Dropbox/cloudbench/gcloud-functions-python-postgres/main.py", line 39, in <module>
    db = setup_context()
  File "/Users/dv/Library/CloudStorage/Dropbox/cloudbench/gcloud-functions-python-postgres/main.py", line 34, in setup_context
    db = SQLAlchemy(app)
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/lib/python3.9/site-packages/flask_sqlalchemy/extension.py", line 219, in __init__
    self.init_app(app)
  File "/Users/dv/Library/Caches/pypoetry/virtualenvs/cloudbench-U2d1CbNl-py3.9/lib/python3.9/site-packages/flask_sqlalchemy/extension.py", line 311, in init_app
    engines = self._app_engines.setdefault(app, {})
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/weakref.py", line 498, in setdefault
    return self.data.setdefault(ref(key, self._remove),default)
TypeError: cannot create weak reference to 'LocalProxy' object