Function MakeIntegerBatchGenForTest

cpp/src/arrow/acero/asof_join_node_test.cc:1659–1663

namespace {

Result<AsyncGenerator<std::optional<ExecBatch>>> MakeIntegerBatchGenForTest(
    const std::vector<std::function<int64_t(int)>>& gens,
    const std::shared_ptr<Schema>& schema, int num_batches, int batch_size) {
  return MakeIntegerBatchGen(gens, schema, num_batches, batch_size);
}

template <typename T>
T GetEnvValue(const std::string& var, T default_value) {