}

  absl::flat_hash_set<std::string> denylisted_ops;
  absl::flat_hash_set<std::string> denylisted_nodes;
  if (ToStringSet(op_denylist, &denylisted_ops) == -1) {
    PyErr_Format(PyExc_ValueError, "Failed to convert op denylist PyObject");
    return nullptr;
  }
  if (ToStringSet(node_denylist, &denylisted_nodes) == -1) {
    PyErr_Format(PyExc_ValueError, "Failed to convert node denylist PyObject");
    return nullptr;