class Constants:
    ERRORS = {
        'ROOM_NOT_FOUND': 'room not found',
        'NAME_IS_REQUIRED': 'name parameter is required',
        'USERNAME_REQUIRED': 'username is required',
        'USER_NOT_FOUND': 'user does not exists',
        'USER_IS_NOT_CREATOR': 'user is not the creator of this room'
    }