public function initSkillsRelatedByStartPositionId($overrideExisting = true)
    {
        if (null !== $this->collSkillsRelatedByStartPositionId && !$overrideExisting) {
            return;
        }
        $this->collSkillsRelatedByStartPositionId = new ObjectCollection();
        $this->collSkillsRelatedByStartPositionId->setModel('\gossi\trixionary\model\Skill');
    }