method PixelCollection.prototype.toByteArrayimport { PixelCollection } from "https://deno.land/x/imagemagick_deno@0.0.14/src/pixels/pixel-collection.ts"; toByteArray(x: number,y: number,width: number,height: number,mapping: string,): quantumArray | nullParametersx: numbery: numberwidth: numberheight: numbermapping: stringReturnsquantumArray | null