code: def test_tokenize(self):
      request = TokenizationRequest(text="I am a computer scientist.")
      result: TokenizationRequestResult = self.client.tokenize(request)
      assert (
          not result.cached
      ), "First time making the tokenize request. Result should not be cached"
      result: TokenizationRequestResult = self.client.tokenize(request)
      assert result.cached, "Result should be cached"
      assert result.raw_tokens == [
          "I",
          " am",
          " a",
          " computer",
          " scientist",
          ".",
      ]
  
file_path: H2O/h2o_hf/helm/src/helm/proxy/clients/test_huggingface_client.py
imports: import os
  import pytest
  import tempfile
  from helm.common.cache import SqliteCacheConfig
  from helm.common.request import Request, RequestResult
  from helm.common.tokenization_request import DecodeRequest, DecodeRequestResult, TokenizationRequest, TokenizationRequestResult
  from .huggingface_client import HuggingFaceClient
label_desc: Use image node_id 3 for calling the TestHuggingFaceClient obj's underlying member method code with example usage: obj.test_tokenize() without return types