added / implemented group API

api/user_api.py

@@ -12,7 +12,7 @@ from flask_jwt_extended import get_jwt_identity, jwt_optional, jwt_required
 from flask_restplus import Resource, fields
 
 from backend import db, app, jwt_auth
-from backend.api import user_api_bp, api_bp, api_user
+from backend.api import api_bp, api_user
 from backend.auth import oidc_auth
 from backend.models.user_model import User, Group
 
@@ -33,7 +33,6 @@ class Profile(Resource):
         return User.get_by_identifier(current_user_id)
 
 
-
 @api_user.route('/')
 class UserList(Resource):
     """