anchor.diff:          {error, Error} ->
               {error, Error}
       end;
  -maybe_process_client(NotAClient, _State) ->
  -    NotAClient.
  +object_creation_hook(Object, _State) ->
  +    Object.
  
positive.code: -export([assemble_principal_ejson/3,
           check_cookbook_authz/3,
           delete_object/3,
           maybe_process_client/2,
           stats_hero_label/1,
           stats_hero_upstreams/0]).
  
  
negative.code: %% @doc Enterprise Chef Clients must be added to the clients group.
  %%
  %% Other objects can pass through.
  object_creation_hook(#chef_client{authz_id=ClientAuthzId}=Client,
                       #base_state{chef_authz_context=AuthContext,
                                   requestor=Requestor,
                                   requestor_id=RequestorId,
  