Neos\Neos\Ui\TypoScript\Helper\ModulesHelper::isAllowed PHP Method

    public function isAllowed($moduleName)
    {
        $moduleConfiguration = $this->modules[$moduleName];
        if (isset($moduleConfiguration['privilegeTarget']) && !$this->privilegeManager->isPrivilegeTargetGranted($moduleConfiguration['privilegeTarget'])) {
            return true;
        }
        return false;
    }