src/vs/workbench/api/common/extHostTerminalService.ts/ExtHostPseudoterminal/updateProperty
class ExtHostPseudoterminal:	updateProperty<T extends ProcessPropertyType>(property: ProcessPropertyType, value: IProcessPropertyMap[T]): Promise<void> {
		throw new Error(`updateProperty is not suppported in extension owned terminals. property: ${property}, value: ${value}`);
	}