public DefaultDispatcherHandlerDescriptorsBuilder(IDispatcherPriorityProvider priorityProvider)
 {
     _priorityProvider = priorityProvider;
 }
 public DefaultDispatcherHandlerActionDescriptorsBuilder(IDispatcherHandlerActionsProvider handlerActionsProvider, IDispatcherPriorityProvider priorityProvider)
 {
     _handlerActionsProvider = handlerActionsProvider;
     _priorityProvider = priorityProvider;
 }