function startsWithimport { startsWith } from "https://dotland.deno.dev/std@0.116.0/bytes/mod.ts"; startsWith(source: Uint8Array, prefix: Uint8Array): booleanCheck whether binary array starts with prefix. Check whether binary array starts with prefix. Parameterssource: Uint8Arraysource array prefix: Uint8Arrayprefix array to check in source Returnsboolean