presto-main/src/main/java/io/prestosql/execution/QueryManagerStats.java/QueryManagerStats/getWallInputBytesRate
class QueryManagerStats:    @Managed(description = "Distribution of query input data rates (wall)")
    @Nested
    public DistributionStat getWallInputBytesRate()
    {
        return wallInputBytesRate;
    }