presto-main/src/main/java/io/prestosql/operator/aggregation/multimapagg/GroupedMultimapAggregationState.java/GroupedMultimapAggregationState/GroupedMultimapAggregationState
class GroupedMultimapAggregationState:    public GroupedMultimapAggregationState(Type keyType, Type valueType)
    {
        super(PageBuilder.withMaxPageSize(MAX_BLOCK_SIZE, ImmutableList.of(valueType, keyType)));
    }