function updateTokenInConnectorAndSendRequest(mPropertyBag, sUrl, sMethod) {
		if (mPropertyBag.initialConnector) {
			delete mPropertyBag.initialConnector.xsrfToken;
		}
		return Utils.sendRequest(mPropertyBag.tokenUrl, "HEAD", {initialConnector: mPropertyBag.initialConnector})
		.then(Utils.sendRequest.bind(undefined, sUrl, sMethod, mPropertyBag));
	}
Util class for Connector implementations (write).

@namespace sap.ui.fl.write._internal.connectors.Utils
@since 1.70
@version ${version}
@private
@ui5-restricted sap.ui.fl.write._internal.connectors, sap.ui.fl.write._internal.transport