docs: public Observable<ServiceResponse<UUID>> createHierarchicalEntityRoleWithServiceResponseAsync(UUID appId, String versionId, UUID hEntityId, CreateHierarchicalEntityRoleOptionalParameter createHierarchicalEntityRoleOptionalParameter) {
          if (this.client.endpoint() == null) {
              throw new IllegalArgumentException("Parameter this.client.endpoint() is required and cannot be null.");
          }
          if (appId == null) {
              throw new IllegalArgumentException("Parameter appId is required and cannot be null.");
          }
          if (versionId == null) {
              throw new IllegalArgumentException("Parameter versionId is required and cannot be null.");
          }
          if (hEntityId == null) {
              throw new IllegalArgumentException("Parameter hEntityId is required and cannot be null.");
          }
          final String name = createHierarchicalEntityRoleOptionalParameter != null ? createHierarchicalEntityRoleOptionalParameter.name() : null;
  
          return createHierarchicalEntityRoleWithServiceResponseAsync(appId, versionId, hEntityId, name);
      }