code: public Observable<ServiceResponse<MatchResponse>> matchMethodWithServiceResponseAsync(String listId, Boolean cacheImage) {
          if (this.client.baseUrl() == null) {
              throw new IllegalArgumentException("Parameter this.client.baseUrl() is required and cannot be null.");
          }
          String parameterizedHost = Joiner.on(", ").join("{baseUrl}", this.client.baseUrl());
          return service.matchMethod(listId, cacheImage, this.client.acceptLanguage(), parameterizedHost, this.client.userAgent())
              .flatMap(new Func1<Response<ResponseBody>, Observable<ServiceResponse<MatchResponse>>>() {
                  @Override
                  public Observable<ServiceResponse<MatchResponse>> call(Response<ResponseBody> response) {
                      try {
                          ServiceResponse<MatchResponse> clientResponse = matchMethodDelegate(response);
                          return Observable.just(clientResponse);
                      } catch (Throwable t) {
                          return Observable.error(t);
                      }
                  }
              });
      }
docs: Fuzzily match an image against one of your custom Image Lists. You can create and manage your custom image lists using &lt;a href="/docs/services/578ff44d2703741568569ab9/operations/578ff7b12703741568569abe"&gt;this&lt;/a&gt; API.
  Returns ID and tags of matching image.&lt;br/&gt;
  &lt;br/&gt;
  Note: Refresh Index must be run on the corresponding Image List before additions and removals are reflected in the response.
  
  @param listId The list Id.
  @param cacheImage Whether to retain the submitted image for future use; defaults to false if omitted.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the MatchResponse object