16      * @param string $record This is the current row value to be modified
22     public static function updateTuple(string $record, int|string $key, int $count): string  argument
24         if ($record != '') {
26             $record = preg_replace('/(^|:)' . preg_quote($key, '/') . '(\*\d+)?/', '', $record);
28         $record = trim($record, ':');
32             if ($record !== '') {
33                 return "$tuple:" . $record;
38         return $record;
46      * @param string $record The row value to parse
50     public static function aggregateTupleCounts(string $record): int  argument
53         $parts = explode(':', $record);
79      * @param string $record The row value to parse
85     public static function parseTuples(string $record, ?array $filtermap = null): array  argument
88         if ($record == '') return $result;
89         $parts = explode(':', $record);