def METHOD_NAME(self, qualification_name: str) -> List[Worker]:
    """
    Returns a list of 'Worker's for workers who are qualified wrt `qualification_name`.
    """
    qual_list = self.db.find_qualifications(qualification_name=qualification_name)
    assert len(qual_list) >= 1, f"No qualification found named {qualification_name}"
    qualification_id = qual_list[0].db_id
    qualifieds = self.db.check_granted_qualifications(
        qualification_id=qualification_id, value=1
    )
    return [Worker.get(self.db, qual.worker_id) for qual in qualifieds]