Name "db.Model" is not defined in Mypy but is defined in SQLAlchemy function from flask_sqlalchemy package in VSCode

[lulunac27a]

Bug Report

(A clear and concise description of what the bug is.)

To Reproduce

from flask import Flask, render_template, redirect, url_for
from flask_sqlalchemy import SQLAlchemy
import math

app = Flask(__name__)
app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///users.db"
db = SQLAlchemy(app)


class User(db.Model):

Expected Behavior
No errors because db.Model is in the SQLAlchemy class of flask_sqlalchemy, so the official Python extensions shows (variable) db: SQLAlchemy when I highlight the error squiggle in VSCode.

Actual Behavior
Name "db.Model" is not defined

Your Environment

• Mypy version used: 1.11.2
• Mypy command-line flags: None
• Mypy configuration options from mypy.ini (and other config files):
• Python version used: 3.9