presto-main/src/main/java/io/prestosql/cost/CostCalculatorWithEstimatedExchanges.java/CostCalculatorWithEstimatedExchanges/calculateRemoteGatherCost
class CostCalculatorWithEstimatedExchanges:    public static LocalCostEstimate calculateRemoteGatherCost(double inputSizeInBytes)
    {
        return LocalCostEstimate.ofNetwork(inputSizeInBytes);
    }