__data, changedProps, this.__dataOld);
          this.__dataCounter--;
        }
      }

      /**
       * Lifecycle callback called the first time properties are being flushed.
       * Prior to `ready`, all property sets through accessors are queued and
       * their effects are flushed after this method returns.
       *
       * Users may override this function to implement behavior that is
       * dependent on the element having its properties initialized, e.g.
       * from defaults (initialized f