def trigger_async(channels, event_name, data, params = {})
      post_async('/events', trigger_params(channels, event_name, data, params))
    end
def trigger_async(channels, event_name, data, params = {})
      post_async('/events', trigger_params(channels, event_name, data, params))
    end
Trigger an event on one or more channels asynchronously.
 For parameters see #trigger