docs: def _secret_event_lifecycle_cb(conn, secret, event, detail, opaque):
      '''
      Secret lifecycle events handler
      '''
      _salt_send_event(opaque, conn, {
          'secret': {
              'uuid': secret.UUIDString()
          },
          'event': _get_libvirt_enum_string('VIR_SECRET_EVENT_', event),
          'detail': 'unknown'  # currently unused
      })