anchor.diff:      _ = lager:warning("Failed to mark as pending_delete, reason: ~p", [Error]),
       Error.
   
  +-spec handle_move_result(ok | {error, term()},
  +                         riakc_obj:riak_object(),
  +                         [binary()],
  +                         pid()) ->
  +    {ok, riakc_obj:riak_object()} | {error, term()}.
   handle_move_result(ok, RiakObject, PDUUIDs, RiakcPid) ->
       mark_as_scheduled_delete(PDUUIDs, RiakObject, RiakcPid);
   handle_move_result({error, _Error}=Error, _RiakObject, _PDUUIDs, _RiakcPid) ->
  
positive.code: 
      ({error, term()}, pid()) ->
      {error, term()} | {ok, riakc_obj:riak_object()}.
  
  handle_mark_as_pending_delete({ok, RiakObject}, RiakcPid) ->
      Manifests = riak_cs_utils:manifests_from_riak_object(RiakObject),
      PDManifests = riak_cs_manifest_utils:filter_pending_delete_uuid_manifests(Manifests),
  
negative.code: %%% Public API
  %%%===================================================================
  
  -spec gc_manifests(UUIDsToMark :: [binary()],
                     RiakObject :: riakc_obj:riak_object(),
                     RiakcPid :: pid()) ->
      {error, term()} | {ok, riakc_obj:riak_object()}.
  gc_manifests(UUIDsToMark, RiakObject, RiakcPid) ->
      MarkedResult = mark_as_pending_delete(UUIDsToMark,
                                            RiakObject,
  