public override string ToString()
{
StringBuilder sb = new StringBuilder("Type(");
sb.Append("Name: ");
sb.Append(Name);
sb.Append(",Type1: ");
sb.Append(Type1);
sb.Append(",Type2: ");
sb.Append(Type2);
sb.Append(",Fields: ");
sb.Append(Fields);
sb.Append(")");
return sb.ToString();
}