Function RetainTensorFlowNodeDef

tensorflow/lite/toco/import_tensorflow.cc:561–563

Retain TensorFlow NodeDef in Toco Operator. If an op is supported by Toco but not supported by TFLite, TFLite exporter will use the retained NodeDef to populate a Flex op when Flex mode is enabled. This can't be easily applied to all operations, because a TensorFlow node may become multiple Toco operators. Thus we need to call this function in operator conversion functions one by one whenever fe

// TODO(b/117327937): Implement all Toco-supported ops in TFLite, and remove
// this function.
void RetainTensorFlowNodeDef(const NodeDef& node, Operator* op) {
  node.SerializeToString(&op->tensorflow_node_def);
}

void GetOutputNamesFromNodeDef(const NodeDef& node,
                               const tensorflow::OpDef& op_def,