docs: public Observable<UUID> createCustomPrebuiltEntityRoleAsync(UUID appId, String versionId, UUID entityId, CreateCustomPrebuiltEntityRoleOptionalParameter createCustomPrebuiltEntityRoleOptionalParameter) {
          return createCustomPrebuiltEntityRoleWithServiceResponseAsync(appId, versionId, entityId, createCustomPrebuiltEntityRoleOptionalParameter).map(new Func1<ServiceResponse<UUID>, UUID>() {
              @Override
              public UUID call(ServiceResponse<UUID> response) {
                  return response.body();
              }
          });
      }