void Log(
	Level level,
	Exception exception,
	Func<string> message
)

Sub Log ( 
	level As Level,
	exception As Exception,
	message As Func(Of String)
)

void Log(
	Level level, 
	Exception^ exception, 
	Func<String^>^ message
)

abstract Log : 
        level : Level * 
        exception : Exception * 
        message : Func<string> -> unit