code: def test_mysql_defaults(
      make_engine: unittest.mock.Mock, app: Flask, model_class: t.Any
  ) -> None:
      app.config["SQLALCHEMY_DATABASE_URI"] = "mysql:///test"
      SQLAlchemy(app, model_class=model_class)
      options = make_engine.call_args[0][2]
      assert options["pool_recycle"] == 7200
      assert options["url"].query["charset"] == "utf8mb4"
  
imports: from __future__ import annotations
  import os.path
  import typing
  import unittest.mock
  import pytest
  import sqlalchemy
  import sqlalchemy.pool
  from flask import Flask
  from flask_sqlalchemy import SQLAlchemy
label_desc: Use image node_id 12 for calling a global function with example usage: test_mysql_defaults(make_engine, app, model_class) without return types