anchor.diff:  	of
   		{Types, Attributes, _} ->
   			Args = [DateStart, DateEnd, '_', Types, Attributes],
  -erlang:display({?MODULE, ?LINE, Args}),
   			MFA = [ocs_log, acct_query, Args],
   			case supervisor:start_child(ocs_rest_pagination_sup, [MFA]) of
   				{ok, PageServer, Etag} ->
  -erlang:display({?MODULE, ?LINE, PageServer, Etag}),
   					query_page(PageServer, Etag, Query, Filters, RangeStart, RangeEnd);
   				{error, _Reason} ->
   					{error, 500}
  
positive.code: 				{_, Value, []} ->
  					case Protocol of
  						radius ->
  erlang:display({?MODULE, ?LINE, Name, Value, T, radius, Types, ReqAttrs, RespAttrs, N}),
  							characteristic(Name, Value, T,
  									radius, Types, ReqAttrs, RespAttrs, N);
  						diameter ->
  erlang:display({?MODULE, ?LINE, Name, Value, T, diameter, Types, ReqAttrs, RespAttrs, N}),
  							characteristic(Name, Value, T,
  									diameter, Types, ReqAttrs, RespAttrs, N)
  					end;
  
negative.code: %% 	requests.
  %% @hidden
  get_usages(Type, Id, Query, Headers) ->
  	case lists:keytake("fields", 1, Query) of
  		{value, {_, Filters}, NewQuery} ->
  			get_usages1(Type, Id, NewQuery, Filters, Headers);
  