method GeneralEncrypt.prototype.setProtectedHeaderimport { GeneralEncrypt } from "https://dotland.deno.dev/x/jose@v5.9.2/index.ts"; setProtectedHeader(protectedHeader: JWEHeaderParameters): thisSets the JWE Protected Header on the GeneralEncrypt object. ParametersprotectedHeader: JWEHeaderParametersJWE Protected Header object. Returnsthis