code: def __init__(self, username, login_id):
      super().__init__(
          f"Username '{username}' already exists with login id '{login_id}'.",
          "error",
      )
  
imports: from aiohttp import web
label_desc: Use image node_id 1 to create a new DuplicateUsername object from inherited base classes: AuthUserError with example: obj = DuplicateUsername(username, login_id)