code: def get_default_operations_client(
      self,
  ) -> operations_v1.OperationsClient:
      client = self.clients.get("operations", None)
      if client is None:
          model_client = self.get_default_client("Model")
          client = model_client._transport.operations_client
          self.clients["operations"] = client
  
      return client
  
imports: from __future__ import annotations
  import os
  import dataclasses
  import types
  from typing import Any, cast
  from collections.abc import Sequence
  import google.ai.generativelanguage
  from google.auth import credentials
  from google.api_core import client_options
  from google.api_core import gapic_v1
  from google.api_core import operations_v1
label_desc: Use image node_id 4 for calling the _ClientManager obj's underlying member method code with example usage: obj.get_default_operations_client() and returns: client