createAt static method
Returns a shared TileStore at the given storage filePath.
If the given path is empty, the tile store at the default location is returned.
On iOS, this storage path is excluded from automatic cloud backup.
@param filePath: The path on disk where tiles and metadata will be stored.
Implementation
static Future<TileStore> createAt(Uri filePath) async {
final tileStore = TileStore._();
await _tileStoreInstanceManager.setupTileStore(
tileStore._messageChannel, filePath.path);
_finalizer.attach(tileStore, tileStore._suffix, detach: tileStore);
return tileStore;
}