code: def test_parse_rfc3339():
      dt = parse_rfc3339("2020-10-07T22:44:06.243914Z")
      assert dt == datetime.datetime(2020, 10, 7, 22, 44, 6, 243914)
      assert dt.tzinfo is None
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_parse_rfc3339() without return types