Twitter\Widgets\Buttons\PeriscopeOnAir::__construct PHP Метод

    public function __construct($username, $validate = true)
    {
        $username = \Twitter\Helpers\Validators\PeriscopeUsername::trim($username);
        if (false === $validate || \Twitter\Helpers\Validators\PeriscopeUsername::isValid($username)) {
            $this->username = $username;
        }
    }