} return self::
$icuVersion;
} /**
* Returns the version of the installed ICU data.
*/
public static function getIcuDataVersion(): string
{ return self::
$icuDataVersion ??=
trim(file_get_contents(self::
getDataDirectory().'/version.txt'
));
} /**
* Returns the ICU version that the stub classes mimic.
*/
public static function getIcuStubVersion(): string
{ return '73.2';
} /**
* Returns the absolute path to the data directory.
*/