int num_shapes_and_types,
                                           const int64_t** shapes,
                                           const int* ranks,
                                           const TF_DataType* types,
                                           TF_Status* status) {
  Node* node = &output.oper->node;

  mutex_lock l(graph->mu);

    *   `Layer` apply and add_variable APIs are deprecated.
    *   Added support for channels first data format in cross entropy losses
        with logits and support for tensors with unknown ranks.
    *   Error messages will be raised if `add_update`, `add_metric`, `add_loss`,
        activity regularizers are used inside of a control flow branch.
    *   New loss reduction types: