code: def _check(user, topic):
      
      # if export_control then check the team is associated to the product, ie.:
      #   - the current user belongs to the product's team
      #   OR
      #   - the product's team belongs to the user's parents teams
      if topic['export_control']:
          product = v1_utils.verify_existence_and_get(topic['product_id'],
                                                      models.PRODUCTS)
          return (user.is_in_team(product['team_id']) or
                  product['team_id'] in user.parent_teams_ids)
      return False
docs: If the topic has it's export_control set to True then all the teams
      under the product team can access to the topic's resources.
  
      :param user:
      :param topic:
      :return: True if check is ok, False otherwise