Microsoft.CodeAnalysis.Razor.Completion.CompletionItemResolver.ResolveAsync(Roslyn.LanguageServer.Protocol.VSInternalCompletionItem, Roslyn.LanguageServer.Protocol.VSInternalCompletionList, Microsoft.CodeAnalysis.Razor.Completion.ICompletionResolveContext, Roslyn.LanguageServer.Protocol.VSInternalClientCapabilities, Microsoft.CodeAnalysis.Razor.Tooltip.IComponentAvailabilityService, System.Threading.CancellationToken)