using inet ** The HTTP request.class ButterRequest {** Url to use for request. Uri url** HTTP version to use for request.** Defaults to HTTP 1.1 Version version := Butter.http11** HTTP method to use for request.** Defaults to "GET". Str method := "GET"{ set { &method = it.upper }}** The HTTP headers to use for the next request. ** This map uses case insensitive keys. HttpRequestHeaders headers := HttpRequestHeaders()** A temporary store for request data, use to pass data between middleware. Str:Obj stash := Str:Obj[:]{ caseInsensitive = true}** The request body. Buf body := Buf()new make(Uri url, |This|? f := null){this.url = url f?.call(this)}override Str toStr(){"${method} ${url} HTTP/${version}"}}