code: function resolveDependenciesToUnified() {
  		if ( !Calendar || !DateRange ) {
  			sap.ui.getCore().loadLibrary("sap.ui.unified");
  			Calendar = sap.ui.requireSync("sap/ui/unified/Calendar");
  			DateRange = sap.ui.requireSync("sap/ui/unified/DateRange");
  		}
  	}
docs: /*
  helper to resolve lazy dependencies
  TODO: should act asynchronously