docs: def create(self):
          """Create an instance of the current target in the database
  
          If a target with the current name and params already exists, no second instance is created.
          """
          session = client.get_client().create_session()
  
          if not self._base_query(session).count() > 0:
              # store a new target instance to the database
              marker = ORMTargetMarker(name=self.name,
                                       params=self.params)
              session.add(marker)
              session.commit()
  
          session.close()