import { ImageCallback } from '@jimp/core'; interface Cover { cover(w: number, h: number, cb?: ImageCallback<this>): this; cover(w: number, h: number, alignBits?: number, cb?: ImageCallback<this>): this; cover( w: number, h: number, alignBits?: number, mode?: string, cb?: ImageCallback<this> ): this; } export default function(): Cover;