code: public Observable<LuisResult> resolveAsync(String appId, String query, ResolveOptionalParameter resolveOptionalParameter) {
          return resolveWithServiceResponseAsync(appId, query, resolveOptionalParameter).map(new Func1<ServiceResponse<LuisResult>, LuisResult>() {
              @Override
              public LuisResult call(ServiceResponse<LuisResult> response) {
                  return response.body();
              }
          });
      }
docs: Gets predictions for a given utterance, in the form of intents and entities. The current maximum query size is 500 characters.
  
  @param appId The LUIS application ID (Guid).
  @param query The utterance to predict.
  @param resolveOptionalParameter the object representing the optional parameters to be set before calling this API
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the LuisResult object