class_docstr: Mock client
class_docstr_tok: ["Mock","client"]
code: def stop_stream(self):
      self._callback = None
  
file_path: towhee/towhee/serve/triton/bls/mock/mock_triton_client.py
imports: from typing import List, Dict
  from towhee.serve.triton.bls.python_backend_wrapper import pb_utils
label_desc: Use image node_id 5 for calling the MockTritonClient obj's underlying member method code with example usage: obj.stop_stream() without return types