code: def __init__(
      self,
      api_key: Optional[str] = None,
      backend_url: Optional[str] = None,
  ):
      self.api_key = api_key
      self.backend_url = backend_url
      self.rc = get_rest_client(self.backend_url, self.api_key)
  
file_path: upgini/src/upgini/ads_management/ads_manager.py
imports: import time
  from typing import Dict, Optional
  import uuid
  from upgini.http import get_rest_client
  from upgini.spinner import Spinner
  import pandas
label_desc: Use image node_id 1 to create a new AdsManager object  with example: obj = AdsManager(api_key, backend_url)