description

# getMetadata method Null safety

1. @JSName('getMetadata')

Future<Metadata> getMetadata ()
@JSName('getMetadata')

## Implementation

    @JSName('getMetadata')
    Future<Metadata> getMetadata() {
      var completer = new Completer<Metadata>();
      _getMetadata((value) {
        applyExtension('Metadata', value);
        completer.complete(value);
      }, (error) {
        completer.completeError(error);
      });
      return completer.future;
    }