}
  }
  return absl::OkStatus();
}

bool IsLegacyCallInstruction(mlir::Operation* inst) {
  return llvm::dyn_cast<mlir::TF::LegacyCallOp>(inst);
}

Status AddTensorFlowOpPrefix(std::string prefix) {
  GlobalOpPrefixes()->insert(prefix);
  return absl::OkStatus();
}