llvm::SmallVector<llvm::StringRef, 2> output_names =
      GetStringsFromAttrWithSeparator(dict_attr, /*attr_key=*/"outputs");

  for (const auto& input_pair : llvm::enumerate(signature->inputs)) {
    const int arg_index = GetTensorIndex(
        tensors[input_pair.value()->tensor_index]->name, input_names);
    if (arg_index == -1) {
      func->emitWarning("Invalid signature tensors specified.");
      return;
    }