public
      
      
        class
      
      
         TimeSpanConverter : JsonConverter

    {

        
      
      
        public
      
      
        override
      
      
        bool
      
      
         CanConvert(Type objectType)

        {

            
      
      
        return
      
       objectType == 
      
        typeof
      
      
        (TimeSpan);

        }

    

        
      
      
        public
      
      
        override
      
      
        void
      
       WriteJson(JsonWriter writer, 
      
        object
      
      
         value, JsonSerializer serializer)

        {

            writer.WriteStartObject();

            writer.WritePropertyName(
      
      
        "
      
      
        $type
      
      
        "
      
      
        );

            writer.WriteValue(value.GetType().FullName);

            writer.WritePropertyName(
      
      
        "
      
      
        $value
      
      
        "
      
      
        );

            writer.WriteValue(value);

            writer.WriteEndObject();

        }

    

        
      
      
        public
      
      
        override
      
      
        object
      
       ReadJson(JsonReader reader, Type type, 
      
        object
      
      
         value, JsonSerializer serializer)

        {

            
      
      
        return
      
      
         value;

        }   

    }