code: public void enter(@NonNull ViewPosition fromPos, boolean withAnimation) {
          if (GestureDebug.isDebugAnimator()) {
              Log.d(TAG, "Entering from view position, with animation = " + withAnimation);
          }
  
          enterInternal(withAnimation);
          updateInternal(fromPos);
      }
docs: Starts 'enter' animation from {@code from} position to {@code to} view.
  <p>
  Note, if {@code from} view position was changed (i.e. during list adapter refresh) you
  should update to new view using {@link #update(ViewPosition)} method.
  
  @param fromPos 'From' view position
  @param withAnimation Whether to animate entering or immediately jump to entered state