public sealed class LoggerCache<TKey, TLogger> : ILoggerCache<TKey, TLogger>, 
	IDisposable
where TLogger : class

Public NotInheritable Class LoggerCache(Of TKey, TLogger As Class)
	Implements ILoggerCache(Of TKey, TLogger), IDisposable

generic<typename TKey, typename TLogger>
where TLogger : ref class
public ref class LoggerCache sealed : ILoggerCache<TKey, TLogger>, 
	IDisposable

[<SealedAttribute>]
type LoggerCache<'TKey, 'TLogger when 'TLogger : not struct> =  
    class
        interface ILoggerCache<'TKey, 'TLogger>
        interface IDisposable
    end