anchor.diff:  	Headers	:: [tuple()],
   	Body		:: iolist(),
   	Status	:: 400 | 404 | 500 .
  -%% @doc Respond to `GET /catalogManegment/v2/serviceSpecification/{id}'.
  +%% @doc Respond to `GET /catalogManagement/v2/serviceSpecification/{id}'.
   %% 	Retrieve a service specification.
   get_service_spec(ID, [] = _Query) ->
   	case service_spec(ID) of
  
positive.code: 	Description3 = {"description", "Number of seconds for interim updated"},
  	Config3 = {"configurable", false},
  	Type3 = {"valueType", "Number"},
  	Value3 = {"serviceSpecCharacteristicValue", {array, [Type3]}},
  	Char3 = {struct, [Name3, Description3, Config3, Type3, Value3]},
  	Name4 = {"name", "sessionTimeout"},
  	Description4 = {"description", "Number of seconds for one session"},
  	Config4 = {"configurable", false},
  	Type4 = {"valueType", "Number"},
  	Value4 = {"serviceSpecCharacteristicValue", {array, [Type4]}},
  	Char4 = {struct, [Name4, Description4, Config4, Type4, Value4]},
  	Name5 = {"name", "multiSession"},
  	Description5 = {"description", ""},
  
negative.code: 		Result :: {struct, [tuple()]} | {error, 404}.
  %% @doc Get Service Specification by ID
  service_spec("1") ->
  	ocs_service_spec();
  service_spec(_) ->
  	{error, 404}.
  
  %% @hidden
  ocs_service_spec() ->
  	Id = {"id", "1"},
  	Href = {"href", ?serviceSpecPath ++ "1"},
  	Name = {"name", "OCSServiceSpec"},
  	Description = {"description", ""},
  	Version = {"version", "1.0"},
  	Status = {"lifecycleStatus", "Active"},
  