Design flaw in SailthruClient GetStat method definition

[hickeroar]

https://github.com/sailthru/sailthru-net-client/blob/master/Sailthru/Sailthru/SailthruClient.cs#L528

This GetStat method is overloaded:

public SailthruResponse GetStat(String stat, String list = null, String date = null, Hashtable htOptions = null)

public SailthruResponse GetStat(String stat, String template = null, String startDate = null, String endDate = null, Hashtable htOptions = null)

Every parameter after the first one is optional, but they're actually required if you want to call the method successfully. If you try calling GetStat("list") it's flagged as ambiguous because it doesn't know which to call. If you only want the first parameter to be specified, you instead have to call GetStat("list", null, null, new HashTable()).