presto-main/src/main/java/io/prestosql/sql/planner/planprinter/IoPlanPrinter.java/FormattedRange/FormattedRange
class FormattedRange:        @JsonCreator
        public FormattedRange(
                @JsonProperty("low") FormattedMarker low,
                @JsonProperty("high") FormattedMarker high)
        {
            this.low = requireNonNull(low, "low is null");
            this.high = requireNonNull(high, "high is null");
        }