where JsonResponse: TryFrom<Vec<u8>, Error = std::io::Error> + TryInto<T, Error = std::io::Error> {
let host = format!("{}:{}", self.endpoint.host(), self.endpoint.port());
let uri = self.endpoint.path();
where JsonResponse: TryFrom<Vec<u8>, Error = std::io::Error> + TryInto<T, Error = std::io::Error> {
let host = format!("{}:{}", self.endpoint.host(), self.endpoint.port());
let uri = self.endpoint.path();