docs: public T reverse() {
          String id = getId();
          String REVERSE = "_REVERSE";
          if (id.endsWith(REVERSE)) {
              setId(id.substring(0, id.length() - REVERSE.length()));
          }
  
          float start = mStart;
          float end = mEnd;
          mStart = end;
          mEnd = start;
          mReverse = !mReverse;
          return self();
      }