code: def test_reflect(app: Flask) -> None:
      app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///user.db"
      app.config["SQLALCHEMY_BINDS"] = {"post": "sqlite:///post.db"}
      db = SQLAlchemy(app)
      db.Table("user", sa.Column("id", sa.Integer, primary_key=True))
      db.Table(
          "post",
          sa.Column("id", sa.Integer, primary_key=True),
          bind_key="post",
      )
      db.create_all()
  
      del app.extensions["sqlalchemy"]
      db = SQLAlchemy(app)
      assert not db.metadata.tables
      db.reflect()
      assert "user" in db.metadata.tables
      assert "post" in db.metadatas["post"].tables
  
imports: from __future__ import annotations
  import typing
  import pytest
  import sqlalchemy
  import sqlalchemy.exc
  import sqlalchemy.orm
  from flask import Flask
  from flask_sqlalchemy import SQLAlchemy
  from flask_sqlalchemy.model import DefaultMeta
  from flask_sqlalchemy.model import Model
label_desc: Use image node_id 11 for calling a global function with example usage: test_reflect(app) without return types