async function fetchTemplate(sPath) {
			const oResponse = await fetch(`${sap.ui.require.toUrl(sPath)}.js`);
			if (!oResponse.ok) {
				throw new Error(`resource ${sPath} could not be loaded from ${sPath}. Check for 'file not found' or parse errors. Reason: ${oResponse.statusText}`);
			}
			return oResponse.text();
		}
Provides functionality to create <code>ControllerExtensions</code>.

@namespace
@name sap.ui.rta.service.ControllerExtension
@author SAP SE
@since 1.58
@version ${version}
@private
@ui5-restricted