async function getIFrameSettings(oModifier, oIFrame) {
		const oSettings = {};
		for (const sPropertyName of aUpdatableProperties) {
			const vValue = await oModifier.getProperty(oIFrame, sPropertyName);
			oSettings[sPropertyName] = vValue;
		}
		return oSettings;
	}
Extract an IFrame control settings.

@param {object} oModifier Modifier for the controls
@param {sap.ui.fl.util.IFrame} oIFrame IFrame to extract settings from
@return {Promise<object>} Promise returning the settings
@ui5-restricted sap.ui.fl