code: def set_ad_hitid(self, ad_id, hit_id, sandbox):
          
          if sandbox:
              req = self.update_record('sandboxad', ad_id, {'amt_hit_id':hit_id},
                                       self.access_key, self.secret_key)
          else:
              req = self.update_record('ad', ad_id, {'amt_hit_id':hit_id},
                                       self.access_key, self.secret_key)
          if req.status_code == 201:
              return True
          else:
              return False
docs: get_ad_hitid:
              updates the ad with the corresponding hitid