anchor.diff:                    case get_users_1() of
                         {ok, List} ->
                             Formatter:users(List);
  +                      {error, not_found} when Formatter =:= leo_manager_formatter_json ->
  +                          Formatter:users([]);
                         {error, Cause} ->
                             Formatter:error(Cause)
                     end
  
positive.code:                   case get_buckets_1() of
                        {ok, Buckets} ->
                            Formatter:buckets(Buckets);
                        {error, Cause} ->
                            Formatter:error(Cause)
                    end
  
negative.code:                   case get_endpoints_1() of
                        {ok, EndPoints} ->
                            Formatter:endpoints(EndPoints);
                        {error, ?ERROR_ENDPOINT_NOT_FOUND} when Formatter =:= leo_manager_formatter_json ->
                            Formatter:endpoints([]);
                        {error, Cause} ->
                            Formatter:error(Cause)
                    end
  