We really need a way to define how to parse TKey

[nicholi]

There was no way to specify how to parse a generic TKey type, the constructor just threw an exception for any of the non-default types you've handled by guessing type.

Can't override the base class because there is no default empty constructor. So the dev would have to checkout src, modify to add their own parsing for TKey, and build their own binary.... or just allow them to specify how to parse it.

• Added optional parameter which just takes Func delegate for parsing subject.
• Also added default parsing for System.UInt32 as key type.

[leastprivilege]

Hi,

thanks! Please read the contributing.md first.