anchor.diff:      true = ets:delete(Table,Key).
   
   
  -
  -
   insert(Table, Entry) ->
       true = ets:insert(Table, Entry).
   
  
positive.code:     delete_user_if_true(Timestamp > ATime, UserInfo).
  
  delete_user_if_true(true,UserInfo) ->
      #{ user_ids := UserIds,
         uid := UserId
       } = UserInfo,
      user_delete_mappings(UserIds),
      delete(?TTS_USER,UserId),
      true;
  delete_user_if_true(_,_UserInfo) ->
      false.
  
negative.code: -export([
           user_lookup_info/2,
           user_insert_info/2,
           user_delete_info/1,
           user_delete_info/2,
           user_delete_entries_older_than/1,
           user_delete_entries_not_accessed_for/1,
           user_inspect/0,
  