Microsoft.CodeAnalysis.InlineHints.IInlineParameterNameHintsService.GetInlineHintsAsync(Microsoft.CodeAnalysis.Document, Microsoft.CodeAnalysis.Text.TextSpan, Microsoft.CodeAnalysis.InlineHints.InlineParameterHintsOptions, Microsoft.CodeAnalysis.LanguageService.SymbolDescriptionOptions, System.Boolean, System.Threading.CancellationToken)