dispose method

@override Future<void> dispose()

Dispose any resources used by this sink

Implementation

@override
Future<void> dispose() async {
  try {
    await _sink?.close();
  } catch (e) {
    // Ignore disposal errors
  } finally {
    _sink = null;
    _currentFile = null;
    _isInitialized = false;
    _isInitializing = false;
    _initCompleter = null;
  }
}