method Headers.prototype.appendimport { Headers } from "https://deno.land/x/netzo@v0.1.10/deno.d.ts"; append(name: string, value: string): voidAppends a new value onto an existing header inside a Headers object, or adds the header if it does not already exist. Appends a new value onto an existing header inside a Headers object, or adds the header if it does not already exist. Parametersname: stringvalue: stringReturnsvoid