anchor.diff:  
   ping_modules() ->
       envy:get(oc_chef_wm, health_ping_modules,list).
  -
  
positive.code:                             pang -> <<"fail">>;
                              timeout -> <<"fail">>
                          end,
              gather_health_workers(Rest, [ {?A2B(Mod), ResultBin} | Acc ]);
          {'DOWN', _MonRef, process, Pid, normal} ->
              %% ignore. should always get the message from the worker before the down
  
negative.code: %% format and converts 'pang' to 'fail' for easier reading.
  -spec gather_health_workers([{{pid(), reference()}, atom()}],
                              [{binary(), binary()}]) -> [{binary(), binary()}].
  gather_health_workers([{{Pid, Ref}, Mod} | Rest] = List, Acc) ->
      %% Each worker is allotted `ping_timeout()' time to complete its check and report back
      %% to this process. We should always get a reply within this window since either the
      %% worker will send a result, trigger a timeout and send that, or crash in which case
  