code: def test_decode(self):
      assert (
          self.window_service.decode(
              TEST_TOKEN_REPRESENTATIONS, TEST_PROMPT
          )
          == TEST_PROMPT
      )
      assert (
          self.window_service.decode(
              TEST_TOKEN_REPRESENTATIONS, TEST_PROMPT
          )[:-1]
          == TEST_PROMPT[:-1]
      )
  
file_path: H2O/h2o_hf/helm/src/helm/benchmark/window_services/test_ai21_window_service.py
imports: import pytest
  from typing import List
  import unittest
  from unittest import mock
  from helm.common.authentication import Authentication
  from helm.common.tokenization_request import TokenizationRequestResult, TokenizationToken, TextRange
  from helm.proxy.services.remote_service import RemoteService
  from .test_utils import TEST_PROMPT
  from .tokenizer_service import TokenizerService
  from .window_service_factory import WindowServiceFactory
label_desc: Use image node_id 3 for calling the TestAI21WindowService obj's underlying member method code with example usage: obj.test_decode() without return types