cleanupBuffer(matchArg) {
        let wasBuffered = false;
        this._buffer = this._buffer.filter(item => {
          if (item.some(arg => arg === matchArg)) {
            wasBuffered = true;
            return false;
          }

          return true;
        });
        return wasBuffered;
      }
Remove buffered events with any argument that is equal to the given value.
@param matchArg Given value to match.