SomethingFromJsonParser.cs

public class JSONValue {}

public class JSONObject : JSONValue
{
    public Dictionary<string, JSONValue> Pairs { get; set; }
    
    public JSONObject(IEnumerable<KeyValuePair<string, JSONValue>> pairs)
    {
        Pairs = new Dictionary<string, JSONValue>();
        
        if (pairs != null)
        {
            foreach (var p in pairs)
            {
                Pairs.Add(p.Key, p.Value);
            }
        }
    }
}

public class JSONArray : JSONValue
{
    public List<JSONValue> Elements { get; set; }
    
    public JSONArray(IEnumerable<JSONValue> elements)
    {
        Elements = new List<JSONValue>();
        
        if (elements != null)
        {
            foreach (var e in elements)
            {
                Elements.Add(e);
            }
        }
    }
}

public class JSONLiteral : JSONValue
{
    public string Value { get; set; }
    
    public LiteralType ValueType { get; set; }
    
    public JSONLiteral(string value, LiteralType type)
    {
        Value = value;
        ValueType = type;
    }
    
    pubilc static enum LiteralType
    {
        String,
        Number,
        Boolean,
        Null
    }
}