private static object Map(string value, K type)
 {
     return(type switch
     {
         K.String => string.IsNullOrEmpty(value) ? "" : value,
         K.Boolean => value != "0" && value != "false",
         K.Timestamp => string.IsNullOrEmpty(value) ? default : DateTime.Parse(value),
         K.Long => string.IsNullOrEmpty(value) ? default : long.Parse(value),
         K.Short => string.IsNullOrEmpty(value) ? default : short.Parse(value),
         K.Double => string.IsNullOrEmpty(value) ? default : decimal.Parse(value, CultureInfo.GetCultureInfo("en-US")),
         K.Int => string.IsNullOrEmpty(value) ? default : int.Parse(value),
         _ => throw new ArgumentException($"Unsupported type: {type}")
     });
 public Type(string value)
 {
     FieldTypes.AssertString(value);
     Value = value switch
     {
         "string" => K.String,
         "timestamp" => K.Timestamp,
         "boolean" => K.Boolean,
         "long" => K.Long,
         "short" => K.Short,
         "double" => K.Double,
         "int" => K.Int,
         _ => throw new ArgumentException($"Unsupported kind: '{value}"),
     };
 }