formatting

api/extensions.py

@@ -1,7 +1,8 @@
+from flask_apispec import FlaskApiSpec
 from flask_jwt_extended import JWTManager
 from flask_migrate import Migrate
 from flask_sqlalchemy import SQLAlchemy, Model
-from flask_apispec import FlaskApiSpec
+
 
 class CRUDMixin(Model):
     """Mixin that adds convenience methods for CRUD (create, read, update, delete) operations."""
@@ -30,6 +31,7 @@ class CRUDMixin(Model):
         db.session.delete(self)
         return commit and db.session.commit()
 
+
 db = SQLAlchemy(model_class=CRUDMixin)
 migrate = Migrate()
 jwt = JWTManager()