@JsonPropertyDescription(DESCRIPTION_PREFIX + "various values relating to the memory use on a node.")
    @JsonProperty("memory")
    public List<DocRef> getMemoryDocRefs() {
        return memoryDocRefs;
    }
Create a list of {@link DocRef} objects that are associated with a single {@link InternalStatisticKey}
stroom-statistics/stroom-statistics-impl/src/main/java/stroom/statistics/impl/InternalStatisticsConfig.java