code: def test_zh_retrievalQA():
      data_path_en = os.environ.get("TEST_DATA_PATH_EN")
      data_path_zh = os.environ.get("TEST_DATA_PATH_ZH")
      en_model_path = os.environ.get("EN_MODEL_PATH")
      zh_model_path = os.environ.get("ZH_MODEL_PATH")
      zh_model_name = os.environ.get("ZH_MODEL_NAME")
      en_model_name = os.environ.get("EN_MODEL_NAME")
      sql_file_path = os.environ.get("SQL_FILE_PATH")
      qa_session = UniversalRetrievalConversation(
          files_en=[
              {
                  "data_path": data_path_en,
                  "name": "company information",
                  "separator": "\n",
              }
          ],
          files_zh=[
              {
                  "data_path": data_path_zh,
                  "name": "company information",
                  "separator": "\n",
              }
          ],
          zh_model_path=zh_model_path,
          en_model_path=en_model_path,
          zh_model_name=zh_model_name,
          en_model_name=en_model_name,
          sql_file_path=sql_file_path,
      )
      ans = qa_session.run("哪家公司在经营酒店业务？", which_language="zh")
      print(ans)
  
label_desc: Use image node_id 2 for calling a global function with example usage: test_zh_retrievalQA() without return types