/** Only trust messages from the expected window on this site's origin. */
export declare function isLiveDemoMessage(event: MessageEvent, source: Window, type: 'dumi.liveDemo.setSource' | 'dumi.liveDemo.compileDone'): boolean;
export declare function isLiveDemoSource(value: unknown, entryFileName: string | undefined): value is Record<string, string>;
export declare function isLiveDemoCompileResult(value: unknown): boolean;