anchor.diff:  					{content_range, ContentRange}],
   			{ok, Headers, Body}
   	end;
  -get_acct_usage(_Query) ->
  +get_acct_usage(_Query, _Filters) ->
   	{error, 400}.
   
  +%% @hidden
  +filter([H | T], Acc) ->
  +	filter(T, lists:keydelete(H, 1, Acc));
  +filter([], Acc) ->
  +	lists:reverse(Acc).
  +
  
positive.code: 	end.
  
  %% @hidden
  get_auth_usage([] = _Query) ->
  	{ok, MaxItems} = application:get_env(ocs, rest_page_size),
  	case ocs_log:last(ocs_auth, MaxItems) of
  		{error, _} ->
  			{error, 500};
  		{NewCount, Events} ->
  			JsonObj = usage_aaa_auth(Events),
  			JsonArray = {array, JsonObj},
  			Body = mochijson:encode(JsonArray),
  			ContentRange = "items 1-" ++ integer_to_list(NewCount) ++ "/*",
  
negative.code: %% @hidden
  usage_aaa_auth({Milliseconds, N, P, Node,
  		{ServerIP, ServerPort}, {ClientIP, ClientPort}, EventType,
  		RequestAttributes, ResponseAttributes}, Filters) ->
  	UsageSpec = {struct, [{id, "AAAAccessUsageSpec"},
  			{href, "/usageManagement/v1/usageSpecification/AAAAccessUsageSpec"},
  			{name, "AAAAccessUsageSpec"}]},
  