code: @SuppressWarnings("WeakerAccess")
    public SnackbarBuilder consecutiveDismissCallback(final SnackbarConsecutiveDismissCallback callback) {
      callbacks.add(new SnackbarCallback() {
        public void onSnackbarDismissedAfterAnotherShown(Snackbar snackbar) {
          callback.onSnackbarDismissedAfterAnotherShown(snackbar);
        }
      });
      return this;
    }
docs: Set the callback to be informed of the Snackbar being dismissed due to another Snackbar being shown.
  
  @param callback The callback.
  @return This instance.