getExtensionPointInfoByParentId(mPropertyBag) {
			return ExtensionPointRegistry.getExtensionPointInfoByParentId(mPropertyBag.parentId);
		}
Returns the extension point information by parent ID.

@param {object} mPropertyBag - Object with parameters as properties
@param {string} mPropertyBag.parentId - ID of the extension point parent control
@returns {Array} Array of extension point information

@private
@ui5-restricted sap.ui.fl, sap.ui.rta