docs: function _GpfClassDefinition (qName, superClassDef) {
      _gpfAssert(!superClassDef || superClassDef instanceof _GpfClassDefinition, "Expected a _GpfClassDefinition");
      /*jshint validthis:true*/ // constructor
      /*eslint-disable no-invalid-this*/
      this._qName = qName;
      this._members = Object.create(_gpfLinkToSuperClassDef(this, superClassDef));
      /*eslint-enable no-invalid-this*/
  }