code: public Observable<List<Project>> getProjectsAsync() {
          return getProjectsWithServiceResponseAsync().map(new Func1<ServiceResponse<List<Project>>, List<Project>>() {
              @Override
              public List<Project> call(ServiceResponse<List<Project>> response) {
                  return response.body();
              }
          });
      }
docs: Get your projects.
  
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the List&lt;Project&gt; object