anchor.diff:      Mod:set_created(Rec, ActorId).
   
   create_query(Rec) ->
  -    call(Rec, create_query).
  +    call0(Rec, create_query).
   
   update_query(Rec) ->
  -    call(Rec, update_query).
  +    call0(Rec, update_query).
   
   delete_query(Rec) ->
  -    call(Rec, delete_query).
  +    call0(Rec, delete_query).
   
   find_query(Rec) ->
  -    call(Rec, find_query).
  +    call0(Rec, find_query).
   
   list_query(Rec) ->
  -    call(Rec, list_query).
  +    call0(Rec, list_query).
   
   bulk_get_query(Rec) ->
  -    call(Rec, bulk_get_query).
  +    call0(Rec, bulk_get_query).
   
   %% Return the callback module for a given object record type. We're putting the abstraction
   %% in place in case we need to do something other than the identity mapping of record name
  
positive.code: -callback set_created(object_rec(), object_id()) -> object_rec().
  -callback set_updated(object_rec(), object_id()) -> object_rec().
  
  -callback create_query(object_rec()) -> atom().
  -callback update_query(object_rec()) -> atom().
  -callback delete_query(object_rec()) -> atom().
  -callback find_query(object_rec()) -> atom().
  -callback list_query(object_rec()) -> atom().
  -callback bulk_get_query(object_rec()) -> atom().
  
  -callback new_record(OrgId :: object_id(),
                       AuthzId :: object_id() | unset,
  
negative.code: call(Rec, Fun) ->
      Mod = callback_mod(Rec),
      Mod:Fun(Rec).
  
  call0(Rec, Fun) ->
      Mod = callback_mod(Rec),
      Mod:Fun().
  