IRoutedQueryHandlerTQuery, TResult - интерфейс

public interface IRoutedQueryHandler<in TQuery, out TResult> : IRoutedQueryHandler
where TQuery : Object, IRoutedQuery<TResult>

Public Interface IRoutedQueryHandler(Of In TQuery As {Object, IRoutedQuery(Of TResult)}, Out TResult)
	Inherits IRoutedQueryHandler

generic<typename TQuery, typename TResult>
where TQuery : Object, IRoutedQuery<TResult>
public interface class IRoutedQueryHandler : IRoutedQueryHandler

type IRoutedQueryHandler<'TQuery, 'TResult when 'TQuery : Object and IRoutedQuery<'TResult>> =  
    interface
        interface IRoutedQueryHandler
    end