code: func (h *Handler) Handle(err error) {
  	// Get HTTP request (if any)
  	req, _ := httperr.HTTPRequest(err)
  
  	notice := h.notifier.Notice(emperror.ExposeStackTrace(err), req, 1)
  
  	// Extract context from the error and attach it to the notice
  	notice.Params = keyvals.ToMap(emperror.Context(err))
  
  	if h.sendSynchronously {
  		_, _ = h.notifier.SendNotice(notice)
  	} else {
  		h.notifier.SendNoticeAsync(notice)
  	}
  }
docs: // Handle sends the error to Airbrake/Errbit.