class_docstr: Unit test for triton client.
class_docstr_tok: ["Unit","test","for","triton","client","."]
code: def setUp(self):
      MockInferenceServerClient.PIPE = None
  
imports: from typing import List
  import unittest
  from unittest import mock
  from pathlib import Path
  from tempfile import TemporaryDirectory
  import numpy
  from towhee import pipe
  from towhee.serve.triton import triton_client
  from towhee.utils.thirdparty.dill_util import dill
  import towhee.serve.triton.bls.pipeline_model
  from towhee.serve.triton.bls.python_backend_wrapper import pb_utils
  from towhee.utils.serializer import from_json
label_desc: Use image node_id 1 for calling the TestTritonClient obj's underlying member method code with example usage: obj.setUp() without return types