code: public Observable<Tag> getTagAsync(UUID projectId, UUID tagId, GetTagOptionalParameter getTagOptionalParameter) {
          return getTagWithServiceResponseAsync(projectId, tagId, getTagOptionalParameter).map(new Func1<ServiceResponse<Tag>, Tag>() {
              @Override
              public Tag call(ServiceResponse<Tag> response) {
                  return response.body();
              }
          });
      }
docs: Get information about a specific tag.
  
  @param projectId The project this tag belongs to
  @param tagId The tag id
  @param getTagOptionalParameter 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 Tag object