/// <reference types="node" />
import sharp from 'sharp';
export default function ImageHelpers(): {
    image: sharp.Sharp;
    open(src: string): Promise<sharp.Sharp>;
    toBuffer(sharpImg?: sharp.Sharp | undefined): Promise<Buffer>;
    cover(width: number, height?: number | undefined): sharp.Sharp;
    composite(compositeAry: sharp.OverlayOptions[]): sharp.Sharp;
};