anchor.diff:  
   %% @doc Calls all group members running in the specified `Scope' and collects their replies.
   %%
  -%% Same as calling `multi_call(Scope, GroupName, Message, 5000)', see {@link multi_call/4}.
  +%% @equiv multi_call(Scope, GroupName, Message, 5000)
  +%% @end
   -spec multi_call(Scope :: atom(), GroupName :: any(), Message :: any()) ->
       {
           Replies :: [{{pid(), Meta :: term()}, Reply :: term()}],
  
positive.code: %% ----- \/ registry -------------------------------------------------
  %% @doc Looks up a registry entry in the `default' scope.
  %%
  %% Same as calling `lookup(default, Name)', see {@link lookup/2}.
  %%
  %% <h2>Examples</h2>
  %% <h3>Elixir</h3>
  
negative.code: 
  %% @doc Returns the list of all members for GroupName in the `default' scope running on the local node.
  %%
  %% @equiv local_members(default, GroupName)
  %% @end
  -spec local_members(GroupName :: term()) -> [{Pid :: pid(), Meta :: term()}].
  local_members(GroupName) ->
      syn_groups:local_members(GroupName).
  