public static function languageFolder(string $extensionKey, string $prefix = 'EXT:'): string {
    $privateFolder = self::privateFolder($extensionKey, $prefix);

    return "${privateFolder}/Language";
  }
public static function languageFolder(string $extensionKey, string $prefix = 'EXT:'): string {
    $privateFolder = self::privateFolder($extensionKey, $prefix);

    return "${privateFolder}/Language";
  }
public static function languageFolder ( string $ extensionKey , string $ prefix = 'EXT:' ) : string { $ privateFolder = self :: privateFolder ( $ extensionKey , $ prefix ) ; return "${privateFolder}/Language" ; }
Gets the language folder from an extension key.

@param string $extensionKey The extension key
@param string $prefix The optional prefix, defaults to `EXT:`
@return string The language folder
Gets the language folder from an extension key .