/**
 * Type definitions for SD metadata parsing
 * Based on stable-diffusion-inspector reference implementation
 */
export interface SDMetadata {
    prompt?: string;
    negativePrompt?: string;
    steps?: string;
    sampler?: string;
    cfgScale?: string;
    seed?: string;
    size?: string;
    model?: string;
    parameters?: string;
    naiBasePrompt?: string;
    naiCharPrompts?: string[];
    naiNegBasePrompt?: string;
    naiNegCharPrompts?: string[];
    naiVibe?: boolean;
    naiCharRefs?: string[];
    exifFallback?: Record<string, any>;
}
export interface ImageSegment {
    type: string;
    attrs?: Record<string, any>;
    data?: Record<string, any>;
    _source?: string;
    [key: string]: any;
}
export interface FetchImageResult {
    buffer: Buffer;
    source: string;
    sourceType: 'data-uri' | 'base64' | 'local' | 'bot-file';
}
export interface PNGTextChunks {
    [key: string]: string;
}
export interface JPEGAppSegments {
    [key: string]: string;
}
export interface ComfyUINode {
    id?: number;
    type: string;
    widgets_values?: any[];
    inputs?: Array<{
        name?: string;
        type?: string;
        link?: number;
    }>;
    outputs?: any[];
}
export interface ComfyUIWorkflow {
    nodes?: ComfyUINode[];
    links?: Array<number[]>;
    prompt?: any;
    [key: string]: any;
}
export interface NovelAIComment {
    uc?: string;
    steps?: number;
    scale?: number;
    seed?: number;
    sampler?: string;
    uncond_per_vibe?: boolean;
    v4_prompt?: {
        caption: {
            base_caption?: string;
            char_captions?: any[];
        };
    };
    v4_negative_prompt?: {
        caption: {
            base_caption?: string;
            char_captions?: any[];
        };
    };
    director_reference_descriptions?: any[];
    director_reference_strengths?: number[];
    director_reference_secondary_strengths?: number[];
}
export interface StealthPNGHeader {
    magic: string;
    dataLength: number;
    compressedData: Buffer;
}
/**
 * Bit reader for Stealth PNG LSB extraction
 */
export declare class BitReader {
    private data;
    private index;
    constructor(data: number[] | Uint8Array);
    readBit(): number;
    readNBits(n: number): number[];
    readByte(): number;
    readNBytes(n: number): Uint8Array;
    readInt32(): number;
}
/**
 * Image format types
 */
export type ImageFormat = 'png' | 'webp' | 'jpeg' | null;
/**
 * Parse result with error information
 */
export interface ParseResult<T> {
    success: boolean;
    data?: T;
    error?: string;
}