fileName function
Returns the base file name for AssetId.
Implementation
String fileName(AssetId id) {
  var uri = _toAssetScheme(Uri.parse(toAssetUri(id)));
  return uri.pathSegments.last;
}Returns the base file name for AssetId.
String fileName(AssetId id) {
  var uri = _toAssetScheme(Uri.parse(toAssetUri(id)));
  return uri.pathSegments.last;
}