Function IsEnqueue

tensorflow/core/grappler/costs/graph_properties.cc:270–273

TODO(dyoon): Move many helper functions in this file (including those within SymbolicShapeRefiner class) to shared utils.

// TODO(dyoon): Move many helper functions in this file (including those within
// SymbolicShapeRefiner class) to shared utils.
bool IsEnqueue(const NodeDef& n) {
  return (n.op().find("Enqueue") != string::npos &&
          n.op().find("EnqueueMany") == string::npos);
}

bool IsDequeue(const NodeDef& n) {
  return (n.op().find("Dequeue") != string::npos &&