anchor.diff:                    PeriodInSeconds::pos_integer()},
                    [ProcessDescr::supervisor:child_spec()]}}.
   init(Options) ->
  -    start_first_services(Options),
  +    start_first_services(),
       supspec(Options).
   
   -spec supspec(any()) -> {ok, {{one_for_one, MaxRetries::pos_integer(),
  
positive.code:     _ = api_vm:add_nodes(Size - 1),
      ok.
  
  start_first_services(Options) ->
      util:if_verbose("~p start first services...~n", [?MODULE]),
      util:if_verbose("~p start randoms...~n", [?MODULE]),
      randoms:start(),
  
negative.code: 
  %% called by unittest_helper.erl
  -spec start_link([tuple()])
          -> {ok, Pid::pid()} |
             {error, Error::{already_started, Pid::pid()} | shutdown | term()}.
  start_link(Options) ->
      ServiceGroup = "basic_services",
  