code: def test_statistics(hypothesis, reference, expected_stat):
      result = sacrebleu.raw_corpus_bleu(
          [hypothesis], [[reference]], 0.01
      )
      stat = Statistics(result.counts, result.totals)
      assert stat == expected_stat
  
file_path: sockeye/test/unit/test_bleu.py
imports: from collections import namedtuple
  import pytest
  import sacrebleu
label_desc: Use image node_id 3 for calling a global function with example usage: test_statistics(hypothesis, reference, expected_stat) without return types