code: 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*/
  }
docs: Class definition
  - Maintain a flat dictionary of members (using prototype inheritance)
  
  @param {String} qName Fully qualified class name (namespace.name)
  @param {_GpfClassDefinition} [superClassDef=undefined] Super class definition
  @constructor