text: from flask_sqlalchemy import SQLAlchemy
  from flask_migrate import Migrate
  from flask_mail import Mail
  from flask_jwt_extended import JWTManager
  from flask_cors import CORS
  
  
  db = SQLAlchemy()
  migrate = Migrate()
  mail = Mail()
  jwt = JWTManager()
  cors = CORS()
  
  
  from app.utils import jwt_load, jwt_identity # noqa
  
  jwt.user_identity_loader(jwt_load)
  jwt.user_loader_callback_loader(jwt_identity)
  