anchor.diff:  %% This function will build the necessary Zone record before interting.
   -spec put_zone({binary(), binary(), [#dns_rr{}]}) -> ok.
   put_zone({Name, Sha, Records}) ->
  -  ok = erldns_storage:insert(zones, {normalize_name(Name), build_zone(Name, Sha, Records)}),
  +  erldns_storage:insert(zones, {normalize_name(Name), build_zone(Name, Sha, Records)}),
     ok.
   
   %% @doc Put a zone into the cache and wait for a response.
   -spec put_zone(binary(), #zone{}) -> ok.
   put_zone(Name, Zone) ->
  -  ok = erldns_storage:insert(zones, {normalize_name(Name), Zone}),
  +  erldns_storage:insert(zones, {normalize_name(Name), Zone}),
     ok.
   
   %% @doc Put a zone into the cache without waiting for a response.
   -spec put_zone_async({binary(), binary(), [#dns_rr{}]}) -> ok.
   put_zone_async({Name, Sha, Records}) ->
  -  ok = erldns_storage:insert(zones, {normalize_name(Name), build_zone(Name, Sha, Records)}),
  +  erldns_storage:insert(zones, {normalize_name(Name), build_zone(Name, Sha, Records)}),
     ok.
   
   %% @doc Put a zone into the cache without waiting for a response.
   -spec put_zone_async(binary(), #zone{}) -> ok.
   put_zone_async(Name, Zone) ->
  -  ok = erldns_storage:insert(zones, {normalize_name(Name), Zone}),
  +  erldns_storage:insert(zones, {normalize_name(Name), Zone}),
     ok.
   
   %% @doc Remove a zone from the cache without waiting for a response.
  
positive.code: %% @doc Initialize the zone cache.
  -spec init([]) -> {ok, #state{}}.
  init([]) ->
    ok = erldns_storage:create(zones),
    ok = erldns_storage:create(authorities),
    {ok, #state{parsers = []}}.
  
  % ----------------------------------------------------------------------------------------------------
  
negative.code: 
  %% @doc Write the zone into the cache.
  handle_call({put, Name, Zone}, _From, State) ->
    erldns_storage:insert(zones, {normalize_name(Name), Zone}),
    {reply, ok, State};
  
  handle_call({put, Name, Sha, Records}, _From, State) ->
    erldns_storage:insert(zones, {normalize_name(Name), build_zone(Name, Sha, Records)}),
    {reply, ok, State}.
  
  handle_cast({put, Name, Zone}, State) ->
    erldns_storage:insert(zones, {normalize_name(Name), Zone}),
    {noreply, State};
  
  handle_cast({put, Name, Sha, Records}, State) ->
    erldns_storage:insert(zones, {normalize_name(Name), build_zone(Name, Sha, Records)}),
    {noreply, State};
  
  handle_cast({delete, Name}, State) ->
  