https://learn.microsoft.com/en-us/dotnet/api/system.runtime.interopservices._memberinfo.gettypeinfocount?view=netframework-3.5
_MemberInfo.GetTypeInfoCount(UInt32) Method (System.Runtime.InteropServices) | Microsoft Learn
Retrieves the number of type information interfaces that an object provides (either 0 or 1).
memberinfomethodsystemruntimemicrosoft