function copyimport { copy } from "https://dotland.deno.dev/std@0.110.0/bytes/mod.ts"; copy(src: Uint8Array,dst: Uint8Array,off?,): numberCopy bytes from one Uint8Array to another. Bytes from src which don't fit into dst will not be copied. Copy bytes from one Uint8Array to another. Bytes from src which don't fit into dst will not be copied. Parameterssrc: Uint8ArraySource byte array dst: Uint8ArrayDestination byte array optionaloff = [UNSUPPORTED]Offset into dst at which to begin writing values from src. Returnsnumbernumber of bytes copied