publish(/* mPropertyBag */) {
			return Promise.reject("publish is not implemented");
		}
Interface to publish flexibility files for a given application and layer.

@param {object} mPropertyBag Property bag
@param {sap.ui.fl.Layer} mPropertyBag.layer Layer
@param {string} mPropertyBag.reference Flex reference of the application
@param {string} mPropertyBag.url Configured url for the connector
@param {string} mPropertyBag.changelist Transport Id
@returns {Promise} Resolves as soon as the publish is completed without data