anchor.diff:  		#char_value_use{values = [#char_value{value = "originate"}]}
   				when Direction == originate ->
   			filter_prices_dir(Direction, T, [P | Acc]);
  +		#char_value_use{values = [#char_value{value = undefined}]} ->
  +			filter_prices_dir(Direction, T, [P | Acc]);
   		#char_value_use{values = [#char_value{}]} ->
   			filter_prices_dir(Direction, T, Acc);
   		_ ->
  
positive.code: %% @hidden
  filter_prices_tod(Timestamp, [#price{char_value_use = CharValueUse} = P | T], Acc) ->
  	case lists:keyfind("timeOfDayRange", #char_value_use.name, CharValueUse) of
  		#char_value_use{values = [#char_value{value =
  				#range{lower = Start, upper = End}}]} ->
  			case filter_prices_tod1(Timestamp, Start, End) of
  
negative.code: %% @hidden
  filter_prices_key(ChargingKey, [#price{char_value_use = CharValueUse} = P | T], Acc) ->
  	case lists:keyfind("chargingKey", #char_value_use.name, CharValueUse) of
  		#char_value_use{values = [#char_value{value = undefined}]} ->
  			filter_prices_key(ChargingKey, T, [P | Acc]);
  		#char_value_use{values = [#char_value{value = ChargingKey}]} ->
  			filter_prices_key(ChargingKey, T, [P | Acc]);
  		#char_value_use{values = [#char_value{}]} ->
  