// NodeDef can contain partial TF device names. In such cases, canonicalize
  // it. Note that in current TF, placer will place full device name to each
  // node.
  DeviceNameUtils::ParsedName parsed_name;
  if (!DeviceNameUtils::ParseFullName(node_def.device(), &parsed_name)) {
    return errors::InvalidArgument(
        "Op ", op_name, " has invalid device name: ", node_def.device());
  }