code: def test_dummy_request():
      from rasa.nlu.emulators.no_emulator import NoEmulator
  
      em = NoEmulator()
      norm = em.normalise_request_json({"text": ["arb text"]})
      assert norm == {"text": "arb text", "time": None}
  
      norm = em.normalise_request_json(
          {"text": ["arb text"], "time": "1499279161658"}
      )
      assert norm == {"text": "arb text", "time": "1499279161658"}
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_dummy_request() without return types