class_docstr: The Repo Manager to manage the operator repos.
  
  Args:
      author (str): The author of the repo.
      repo (str): The name of the repo.
      root (str): The root url where the repo located.
code: def __init__(
      self, author: str, repo: str, root: str = "https://hub.towhee.io"
  ):
      super().__init__(author, repo, root)
      # 2 represents operators when creating a repo in Towhee's hub
      self._class = 2
  
file_path: towhee/towhee/hub/operator_manager.py
imports: import os
  from typing import Union
  from pathlib import Path
  from towhee.hub.repo_manager import RepoManager
  from towhee.utils.log import engine_log
label_desc: Use image node_id 1 to create a new OperatorManager object from inherited base classes: RepoManager with example: obj = OperatorManager(author, repo, root)