method Buffer.prototype.copyimport { Buffer } from "https://deno.land/x/esm@v97/server/embed/types/node.ns.d.ts"; copy(targetBuffer: Uint8Array,targetStart?: number,sourceStart?: number,sourceEnd?: number,): numberParameterstargetBuffer: Uint8ArrayoptionaltargetStart: numberoptionalsourceStart: numberoptionalsourceEnd: numberReturnsnumber