code: def get_gs_storage_client():
      cache_key = _get_cache_key()
      if cache_key not in _client_cache:
          from google.cloud import storage
          import google.auth
  
          credentials, project_id = google.auth.default(
              scopes=storage.Client.SCOPE
          )
          _client_cache[cache_key] = storage.Client(
              credentials=credentials, project=project_id
          )
      return _client_cache[cache_key]
  
imports: import os
  import threading
label_desc: Use image node_id 2 for calling a global function with example usage: get_gs_storage_client() and returns: _client_cache