public static string ToAWS(this DynamoDBKeyType typ)
        {
            switch (typ)
            {
            case DynamoDBKeyType.Hash: return("HASH");

            case DynamoDBKeyType.Range: return("RANGE");

            default: throw new ArgumentOutOfRangeException("Invalid DynamoDBKeyType");
            }
        }
 public DynamoDBKeyDescriptor(string name, DynamoDBKeyType keyType, DynamoDBDataType fieldType)
 {
     Name      = name;
     KeyType   = keyType;
     FieldType = fieldType;
 }