// response serializers
 /// <summary>Sets fallback response serializer in Message Response Provider.</summary>
 /// <param name="builder">Hosted WOLF Client Service builder.</param>
 /// <param name="serializer">Response serializer to fall back to.</param>
 /// <seealso cref="ResponseSerializerProvider"/>
 /// <seealso cref="ISerializerProvider{TKey, TSerializer}"/>
 /// <seealso cref="IResponseSerializer"/>
 /// <seealso cref="ResponseSerializerProviderOptions.FallbackSerializer"/>
 public static IHostedWolfClientServiceBuilder SetFallbackResponseSerializer(this IHostedWolfClientServiceBuilder builder, IResponseSerializer serializer)
 {
     if (serializer == null)
     {
         throw new ArgumentNullException(nameof(serializer));
     }
     return(builder.ConfigureResponseSerializerProvider(options => options.FallbackSerializer = serializer));
 }
 /// <summary>Maps a response serializer in Message Response Provider.</summary>
 /// <param name="builder">Hosted WOLF Client Service builder.</param>
 /// <param name="responseType">Type of response message.</param>
 /// <param name="serializer">Serializer to serialize and deserialize with.</param>
 /// <seealso cref="ResponseSerializerProvider"/>
 /// <seealso cref="ISerializerProvider{TKey, TSerializer}"/>
 /// <seealso cref="IResponseSerializer"/>
 /// <seealso cref="ResponseSerializerProviderOptions.Serializers"/>
 public static IHostedWolfClientServiceBuilder MapResponseSerializer(this IHostedWolfClientServiceBuilder builder, Type responseType, IResponseSerializer serializer)
 => builder.ConfigureResponseSerializerProvider(options => options.Serializers[responseType] = serializer);