code: protected SuperToast setOnDismissListener(String tag,
                                                @NonNull OnDismissListener onDismissListener) {
          this.mOnDismissListener = onDismissListener;
          this.mStyle.dismissTag = tag;
          this.mStyle.dismissToken = null;
          return this;
      }
docs: Sets the {@link com.github.johnpersano.supertoasts.library.SuperToast.OnDismissListener}
  of the SuperActivityToast. The listener will be triggered when the
  SuperActivityToast is dismissed.
  
  @param tag A unique tag for this listener
  @param onDismissListener The desired OnDismissListener
  @return The current SuperActivityToast instance
  
  @see #setOnDismissListener(String, android.os.Parcelable,
  com.github.johnpersano.supertoasts.library.SuperToast.OnDismissListener)