public static MediatorConfiguration RegisterHandlers(this MediatorConfiguration mediatorConfiguration, IEnumerable <Type> handlerTypes)
        {
            handlerTypes = handlerTypes
                           .Where(x => !x.IsAbstract)
                           .Where(t => t.GetTypeInfo().GetInterfaces().Any(type => type.IsHandlerInterface(typeof(ICommandHandler <>))) ||
                                  t.GetTypeInfo().GetInterfaces().Any(type => type.IsHandlerInterface(typeof(IEventHandler <>))) ||
                                  t.GetTypeInfo().GetInterfaces().Any(type => type.IsHandlerInterface(typeof(IRequestHandler <,>))))
                           .ToList();

            foreach (var handlerType in handlerTypes)
            {
                foreach (var implementedInterface in handlerType.GetTypeInfo().ImplementedInterfaces)
                {
                    if (!IsHandlerInterface(implementedInterface, typeof(ICommandHandler <>)) &&
                        !IsHandlerInterface(implementedInterface, typeof(IEventHandler <>)) &&
                        !IsHandlerInterface(implementedInterface, typeof(IRequestHandler <,>)))
                    {
                        continue;
                    }

                    mediatorConfiguration.RegisterServices(sr =>
                    {
                        sr.Register(implementedInterface.GenericTypeArguments[0], handlerType);
                    });

                    if (mediatorConfiguration.MessageBindings.ContainsKey(implementedInterface.GenericTypeArguments[0]))
                    {
                        mediatorConfiguration.MessageBindings[implementedInterface.GenericTypeArguments[0]].Add(handlerType);
                    }
                    else
                    {
                        mediatorConfiguration.MessageBindings.Add(implementedInterface.GenericTypeArguments[0], new List <Type> {
                            handlerType
                        });
                    }
                }
            }

            return(mediatorConfiguration);
        }
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        public Mediator(MediatorConfiguration mediatorConfiguration)
        {
            Configuration = mediatorConfiguration ?? throw new ArgumentNullException(nameof(mediatorConfiguration));

            _messagePipeline = mediatorConfiguration.BuildPipeline();
        }