var B = dcl(A, {
  // The inherited.get() way:
  calcPrice1: function(x){
    var sup = this.inherited.get.call(this, B, "calcPrice1");
    if(sup){
      return sup.apply(this, arguments);
    }else{
      // There is no super method.
      return 0;
    }
  },

  // The getInherited() way:
  calcPrice2: function(x){
    var sup = this.getInherited(B, "calcPrice2");
    if(sup){
      return sup.apply(this, arguments);
    }else{
      // There is no super method.
      return 0;
    }
  },

  // Compare it with dcl.superCall() example:
  calcPrice3: dcl.superCall(function(sup){
    return function(x){
      if(sup){
        return sup.apply(this, arguments);
      }else{
        // There is no super method.
        return 0;
      }
    };
  })
});