import type { CompressImageData } from '../compress.js';
import type { SharpProcessingOptions } from '../types.js';
/**
 * Generates mipmaps (multiple resolution versions) of an image using Sharp.
 *
 * This function creates different scaled versions of an image based on the provided
 * resolution hash. It maintains the original image for the largest resolution and
 * creates resized copies for smaller resolutions.
 *
 * @param image - The source image data containing Sharp image instance and format
 * @param resolutionHash - Object mapping resolution names to their pixel values
 * @param largestResolution - The maximum resolution value used as base for scaling
 * @param sharpOptions - Sharp processing options including resize configuration
 * @returns Promise resolving to array of CompressImageData objects, each representing a different resolution
 */
export declare function mipmapSharp(image: CompressImageData, resolutionHash: {
    [x: string]: number;
}, largestResolution: number, sharpOptions: SharpProcessingOptions): Promise<CompressImageData[]>;