benchmarks/src/jmh/kotlin/benchmarks/flow/scrabble/FlowPlaysScrabbleBase.kt [105:123]:
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        val buildHistoOnScore: (((String) -> Flow<Int>) -> Flow<TreeMap<Int, List<String>>>) = { score ->
            flow {
                emit(shakespeareWords.asFlow()
                    .filter({ scrabbleWords.contains(it) && checkBlanks(it).single() })
                    .fold(TreeMap<Int, List<String>>(Collections.reverseOrder())) { acc, value ->
                        val key = score(value).single()
                        var list = acc[key] as MutableList<String>?
                        if (list == null) {
                            list = ArrayList()
                            acc[key] = list
                        }
                        list.add(value)
                        acc
                    })
            }
        }

        return runBlocking {
            buildHistoOnScore(score3)
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benchmarks/src/jmh/kotlin/benchmarks/flow/scrabble/FlowPlaysScrabbleOpt.kt [88:106]:
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        val buildHistoOnScore: (((String) -> Flow<Int>) -> Flow<TreeMap<Int, List<String>>>) = { score ->
            flow {
                emit(shakespeareWords.asFlow()
                    .filter({ scrabbleWords.contains(it) && checkBlanks(it).single() })
                    .fold(TreeMap<Int, List<String>>(Collections.reverseOrder())) { acc, value ->
                        val key = score(value).single()
                        var list = acc[key] as MutableList<String>?
                        if (list == null) {
                            list = ArrayList()
                            acc[key] = list
                        }
                        list.add(value)
                        acc
                    })
            }
        }

        return runBlocking {
            buildHistoOnScore(score3)
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