int size;
    TF_RET_CHECK(absl::SimpleAtoi(dim_str, &size));
    dims.push_back(size);
  }
  return dims;
}

static Status HandleSubtype(absl::string_view subtype,
                            ArrayInfo::SubTypeInfo* result) {
  std::vector<std::string> shape_and_type = absl::StrSplit(subtype, ':');

  std::vector<int> dims;
  if (shape_and_type.size() > 2) {

  TensorShapeProto shape;
};

struct ArrayInfo : public ArrayInfoBase {
  using SubTypeInfo = ArrayInfoBase;
  // DT_RESOURCE and DT_VARIANT have subtypes
  std::vector<SubTypeInfo> subtypes;
};

struct GraphImportConfig {
  // Returns string representation of config.
  std::string str() const;

  using InputArrays =
      llvm::MapVector<std::string, ArrayInfo, llvm::StringMap<unsigned>>;

}

// Mapping from node name to feed (index and ArrayInfo). Node name must outlive
// this map.
using FeedsByNode = absl::flat_hash_map<
    absl::string_view,
    absl::flat_hash_map<int, const std::pair<std::string, ArrayInfo>*>>;

// Creates from a `GraphImportConfig::InputArrays` a mapping from a feeds output
// tensor name to index and ArrayInfo. Keys and values are backed by
// `GraphImportConfig::InputArrays`.