code: @NonNull
    @SuppressWarnings("WeakerAccess")
    public SnackbarWrapper setAction(@StringRes int actionText, OnClickListener actionClickListener) {
      snackbar.setAction(actionText, actionClickListener);
      return this;
    }
docs: Set the action to be displayed in the Snackbar and the callback to invoke when the action is clicked.
  
  @param actionText          String resource to display as an action.
  @param actionClickListener Callback to be invoked when the action is clicked.
  @return This instance.