eZ\Publish\Core\SignalSlot\RoleService::publishRoleDraft PHP Method

    public function publishRoleDraft(RoleDraft $roleDraft)
    {
        $returnValue = $this->service->publishRoleDraft($roleDraft);
        $this->signalDispatcher->emit(new PublishRoleDraftSignal(array('roleId' => $roleDraft->id)));
        return $returnValue;
    }