/**
* Remove userGroups.
*
* @param UserGroup $userGroups
*/
public function removeUserGroup(UserGroup $userGroups)
{
$this->userGroups->removeElement($userGroups);
}
/**
* @param UserGroup $group
* @return $this
*/
public function addGroup(UserGroup $group)
{
$this->groups->add($group);
return $this;
}
