anchor.diff:  
   -spec get_option(Option) -> Result 
   	when
  -		Option :: nrf_uri | atom(),
  +		Option :: atom(),
   		Result :: term().
   %% @doc Get the Nrf endpoint uri.
   get_option(Option) -> 
  
positive.code: 		'Service-Information' = ServiceInformation,
  		'Service-Context-Id' = SvcContextId} = Request, SessionId,
  		RequestNum, SubscriberIds, OHost, _DHost, ORealm, _DRealm,
  		_IpAddress, _Port) ->
  	try
  		Location = get_service_location(ServiceInformation),
  		Destination = get_destination(ServiceInformation),
  
negative.code: 		MSCC :: [#'3gpp_ro_Multiple-Services-Credit-Control'{}],
  		Location :: [tuple()],
  		Flag :: initial | interim | final,
  		Class :: a | b,
  		Destination :: string(),
  		Result :: {ok, Body} | {error, Reason},
  		Body :: string(),
  		Reason :: term().
  %% @doc POST ECUR rating data to a Nrf Rating Server.
  post_request_ecur(SubscriberIds, SvcContextId,
  		SessionId, MSCC, Location, Destination, initial, b) ->
  	Path = get_option(nrf_uri) ++ ?BASE_URI,
  	ServiceRating = initial_service_rating_b(MSCC, binary_to_list(SvcContextId),
  			Location, Destination),
  	post_request_ecur1(SubscriberIds, SessionId, ServiceRating, Path);
  post_request_ecur(SubscriberIds, SvcContextId,
  		SessionId, MSCC, Location, Destination, final, b) ->
  	Path = get_option(nrf_uri) ++ get_ref(SessionId) ++ "/" ++ "release",
  	ServiceRating = final_service_rating_b(MSCC, binary_to_list(SvcContextId),
  			Location, Destination),
  	post_request_ecur1(SubscriberIds, SessionId, ServiceRating, Path).
  %% @hidden
  