anchor.diff:                              [lists:concat(["Invalid data type for ", Attr])|Acc]
                       end
                     end
  -        end, [], Record:attribute_types()),
  +        end, [], Module:attribute_types(Record)),
       case Errors of
           [] -> ok;
           _ -> {error, Errors}
  
positive.code: -export([
          migrate/1,
          migrate/2,
          find/1, 
          find/2, 
          find/3, 
          find/4, 
          find_by_sql/3,
          find_by_sql/2,
          find_first/1,
  
negative.code:         count/1,
          count/2,
          count/3,
          counter/1,
          counter/2,
          incr/1,
          incr/2,
          incr/3,
          delete/1,
          delete/2,
          push/0,
          push/1,
          pop/0,
  