private void ConfigureServer(LanguageServerOptions options) { options.WithContentModifiedSupport(true); options.OnCompletion(async(x, ct) => { await Task.Delay(50000, ct); return(new CompletionList()); }, new CompletionRegistrationOptions()); options.OnDidChangeTextDocument(async x => { await Task.Delay(20); }, new TextDocumentChangeRegistrationOptions()); }