@api.doc('list_of_registered_users')
@api.marshal_list_with(_user, envelope='data')
def get(self):
    'List all registered users'
    return UserService.get_all_users()
List all registered users
@api.doc('list_of_registered_users')
@api.marshal_list_with(_user, envelope='data')
def get(self):
    
    return UserService.get_all_users()