anchor.diff:                                  #atm_task_schema_result_mapper{
                                       result_name = <<"lambda1ResName">>,
                                       store_schema_id = <<"store1Id">>,
  -                                    dispatch_function = add
  +                                    store_content_update_options = #atm_list_store_content_update_options{
  +                                        function = append
  +                                    }
                                   }
                               ]
                           }
  
positive.code:                                 #atm_task_schema_result_mapper{
                                      result_name = <<"lambda4ResName">>,
                                      store_schema_id = <<"store4Id">>,
                                      dispatch_function = append
                                  }
                              ]
                          }
  
negative.code:                                 #atm_task_schema_result_mapper{
                                      result_name = <<"lambda3ResName">>,
                                      store_schema_id = <<"store3Id">>,
                                      store_content_update_options = #atm_range_store_content_update_options{}
                                  }
                              ]
                          },
  