private List<PutOutcome> handleRangeOutcomes(final RefDataLoader refDataLoader) {
        final List<PutOutcome> putOutcomes = new ArrayList<>();
        refDataLoader.setRangePutOutcomeHandler((mapDefinitionSupplier, range, putOutcome) -> {
            putOutcomes.add(putOutcome);
        });
        return putOutcomes;
    }
@param refStreamDefinitionCount  Number of {@link RefStreamDefinition}s to create.
@param keyValueMapCount          Number of KeyValue type maps to create per {@link RefStreamDefinition}
@param rangeValueMapCount        Number of RangeValue type maps to create per {@link RefStreamDefinition}
@param entryCount                Number of map entries to create per map
@param refStreamDefinitionOffset The offset from zero for the refStreamDefinition partIndex
@return The created {@link RefStreamDefinition} objects
stroom-pipeline/src/test/java/stroom/pipeline/refdata/store/onheapstore/TestRefDataOnHeapStore.java