def gen_event_type_entry_str(event_type_name, event_type, event_config):
  """
  return string like:
  {"cpu-cycles", PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES},
  """
  return '{"%s", %s, %s},\n' % (event_type_name, event_type, event_config)