docs: public ServiceFuture<DatabasePrincipalListResultInner> addPrincipalsAsync(String resourceGroupName, String clusterName, String databaseName, List<DatabasePrincipalInner> value, final ServiceCallback<DatabasePrincipalListResultInner> serviceCallback) {
          return ServiceFuture.fromResponse(addPrincipalsWithServiceResponseAsync(resourceGroupName, clusterName, databaseName, value), serviceCallback);
      }