- `url` (string) - The URL the data was requested from. - `body` (string) - The raw body of the HTTP response. - `request_headers` (map[string]string) - A map of strings representing the response HTTP headers. Duplicate headers are concatenated with, according to [RFC2616](https://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2).