const llvm::SmallVector<Value>& values) {
  llvm::SmallVector<Type> types;
  for (auto value : values) {
    types.push_back(value.getType());
  }
  return types;
}

func::FuncOp BuildFuncOp(const Subgraph& subgraph, OpBuilder& builder,
                         ModuleOp& module, OpsAdded& ops_added) {
  // The parameters of the new MLIR function are taken to be the union