function decodeProtectedHeaderimport { decodeProtectedHeader } from "https://dotland.deno.dev/x/jose@v5.2.4/index.ts"; decodeProtectedHeader(token: string | object)Decodes the Protected Header of a JWE/JWS/JWT token utilizing any JOSE serialization. Parameterstoken: string | objectJWE/JWS/JWT token in any JOSE serialization.