docs: def get_memberships_for_org(self, account_num, verbose=False):
          """
          Retrieve all memberships associated with an organization,
          ordered by expiration date.
          """
          if not self.client.session_id:
              self.client.request_session()
  
          query = "SELECT Objects() FROM Membership " \
                  "WHERE Owner = '%s' ORDER BY ExpirationDate" % account_num
  
          membership_list = self.get_long_query(query, verbose=verbose)
          return membership_list or []