default <K, V> Stream<V> reduceRows(BiConsumer<Map<K, V>, RowView> accumulator) {
        return reduceRows((LinkedHashMapRowReducer<K, V>) accumulator::accept);
    }
Reduce the result rows using a {@link Map Map&lt;K, V&gt;} as the
result container.

@param accumulator accumulator function which gathers data from each
                   {@link RowView} into the result map.
@param <K>         map key type
@param <V>         map value type
@return the stream of elements in the container's {@link Map#values()}
        collection, in the order they were inserted.
core/src/main/java/org/jdbi/v3/core/result/ResultBearing.java