dispose method
Implementation
Future<void> dispose() async {
_providersDeflection.sink.close();
_providersDeflection.close();
_providersResolveArticleDeflection.sink.close();
_providersResolveArticleDeflection.close();
_providersRejectArticleDeflection.sink.close();
_providersRejectArticleDeflection.close();
}