for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
from flask_cors import CORS
from flask_jwt_extended import JWTManager
from flask_validation import Validator
from flasgger import Swagger
cors = CORS()
jwt = JWTManager()
validator = Validator()
swagger = Swagger()
# jwt.user_loader_callback_loader(...)
# jwt.user_identity_loader(...)