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Warning: session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in /var/www/tb-usercake/models/config.php on line 51
static A singletonOpt(Collection l) { ret l(l) == 1 ? first(l) : null; } static A singletonOpt(A[] l) { ret l(l) == 1 ? first(l) : null; }