src/vs/workbench/services/dialogs/common/dialogService.ts/DialogService/show
class DialogService:	async show(severity: Severity, message: string, buttons?: string[], options?: IDialogOptions): Promise<IShowResult> {
		if (this.skipDialogs()) {
			throw new Error('DialogService: refused to show dialog in tests.');
		}

		const handle = this.model.show({ showArgs: { severity, message, buttons, options } });

		return await handle.result as IShowResult;
	}