/**
 * Image Generation Types
 * Unified types for multi-provider image generation.
 */
export type ImageModelInputFormat = 'json' | 'multipart';
export interface ImageModelConfig {
    provider: 'cloudflare' | 'gemini';
    modelId: string;
    inputFormat?: ImageModelInputFormat;
    supportsNegativePrompt: boolean;
    supportsSeed: boolean;
    stepsParam?: 'num_steps' | 'steps' | null;
    defaultSteps?: number | null;
    defaultGuidance?: number;
    defaultAspectRatio?: string;
    defaultWidth: number;
    defaultHeight: number;
    maxWidth: number;
    maxHeight: number;
}
export interface ImageRequest {
    prompt: string;
    negativePrompt?: string | null;
    model?: string;
    width?: number;
    height?: number;
    steps?: number | null;
    guidance?: number;
    seed?: number | null;
    aspectRatio?: string;
}
export interface ImageResponse {
    image: ArrayBuffer;
    model: string;
    provider: string;
    responseTime: number;
    cost?: number;
}
/**
 * Built-in image model registry.
 * Quality tiers map to specific provider + model combinations.
 *
 * @deprecated Use img-forge instead. See ImageProvider deprecation notice.
 */
export declare const IMAGE_MODELS: Record<string, ImageModelConfig>;
export declare function getImageModel(name: string): ImageModelConfig | undefined;
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