code: function (sComponentName, sAppVersion) {
  		this._oChangePersistence = undefined;
  		this._sComponentName = sComponentName || "";
  		this._sAppVersion = sAppVersion || Utils.DEFAULT_APP_VERSION;
  		if (this._sComponentName && this._sAppVersion) {
  			this._createChangePersistence();
  		}
  	}
docs: Retrieves changes (LabelChange, etc.) for an sap.ui.core.mvc.View and applies these changes
  
  @param {string} sComponentName - Component name the flexibility controller is responsible for
  @param {string} sAppVersion - Current version of the application
  @constructor
  @class
  @alias sap.ui.fl.FlexController
  @experimental Since 1.27.0
  @author SAP SE
  @version ${version}