public static IDynamoQueryClause SelectMyRecordsAndMyOtherRecords(string recordId)
 => DynamoQuery.SelectPKFormat(MY_RECORD_PK_PATTERN, recordId)
 .WhereSKMatchesAny()
 .WithTypeFilter <MyRecord>()
 .WithTypeFilter <MyOtherRecord>();
 public static IDynamoQueryClause <MyRecord> SelectMyRecords(string recordId)
 => DynamoQuery.SelectPKFormat <MyRecord>(MY_RECORD_PK_PATTERN, recordId)
 .WhereSKBeginsWith(string.Format(MY_RECORD_SK_PATTERN, "", ""));