// be future-proof.
  if (llvm::isa<TF::IfOp, TFL::IfOp, TFL::CallOnceOp, TFL::WhileOp>(op))
    return true;
  for (auto operand : op->getOperands()) {
    if (IsResourceTensor(operand)) return true;
  }
  for (auto result : op->getResults()) {
    if (IsResourceTensor(result)) return true;
  }
  return false;
}

// This transformation pass takes an operation that has or depends on side