presto-main/src/main/java/io/prestosql/operator/aggregation/minmaxby/MaxByAggregationFunction.java/MaxByAggregationFunction/MaxByAggregationFunction
class MaxByAggregationFunction:    public MaxByAggregationFunction()
    {
        super(false, "Returns the value of the first argument, associated with the maximum value of the second argument");
    }