code: function _gpfClassSuperCreate (superMember) {
      var superMethod;
      if (typeof superMember === "function") {
          superMethod = superMember;
      } else {
          superMethod = _gpfClassNoSuper;
      }
      return _gpfClassSuperCreateWithSameSignature(superMethod);
  }
docs: Create $super function, either based on super method or triggering an error
  
  @param {*} superMember Member extracted from inherited prototype
  @return {Function} $super function
  @since 0.1.7