* <a href="https://www.rfc-editor.org/rfc/rfc8040#section-3.6">RFC8040 Operation Resource</a>.
*
* @param request {@link ServerRequest} for this request
- * @param restconfURI Base URI of the request
+ * @param restconfURI Base URI of the request, the absolute equivalent to {@code {+restconf}} URI with a trailing
+ * slash
* @param operation {@code <operation>} path, really an {@link ApiPath} to an {@code rpc}
* @param body RPC operation
* @return A {@link RestconfFuture} completing with {@link InvokeResult}