/**
 * Local Backend
 *
 * Implements ComfyBackend using local ComfyUI.
 * This is the DEFAULT backend for most operations.
 */
import { ComfyBackend, GenerationResult, PortraitParams, TTSParams, LipSyncParams, ImagineParams, ImageToVideoParams, LocalBackendConfig } from "./types.js";
export declare class LocalBackend implements ComfyBackend {
    readonly name: "local";
    private client;
    private config;
    constructor(config: LocalBackendConfig);
    healthCheck(): Promise<{
        healthy: boolean;
        version: string;
        details: import("../comfyui-client.js").SystemStats;
        error?: undefined;
    } | {
        healthy: boolean;
        error: string;
        version?: undefined;
        details?: undefined;
    }>;
    portrait(params: PortraitParams): Promise<GenerationResult>;
    tts(params: TTSParams): Promise<GenerationResult>;
    lipsync(params: LipSyncParams): Promise<GenerationResult>;
    imagine(params: ImagineParams): Promise<GenerationResult>;
    /**
     * Extract output files from ComfyUI history and save locally
     */
    private extractOutputFiles;
    imageToVideo(params: ImageToVideoParams): Promise<GenerationResult>;
}