// SavedModel assets.extra directory.
inline constexpr char kSavedModelAssetsExtraDirectory[] = "assets.extra";

// SavedModel assets key for graph collection-def.
inline constexpr char kSavedModelAssetsKey[] = "saved_model_assets";

/// SavedModel legacy init op collection key. Used in v1 SavedModels.
inline constexpr char kSavedModelLegacyInitOpKey[] = "legacy_init_op";

    return absl::OkStatus();
  }
  // Fall back to read from collection to be backward compatible with v1.
  const auto& collection_def_map = meta_graph_def.collection_def();
  const auto assets_it = collection_def_map.find(kSavedModelAssetsKey);
  if (assets_it == collection_def_map.end()) {
    return absl::OkStatus();
  }
  const auto& any_assets = assets_it->second.any_list().value();
  for (const auto& any_asset : any_assets) {