src/vs/platform/native/electron-main/nativeHostMainService.ts/NativeHostMainService/doOpenEmptyWindow
class NativeHostMainService:	private async doOpenEmptyWindow(windowId: number | undefined, options?: IOpenEmptyWindowOptions): Promise<void> {
		this.windowsMainService.openEmptyWindow({
			context: OpenContext.API,
			contextWindowId: windowId
		}, options);
	}