def dist(a, b):
    return sum((i-j)**2 for i, j in zip(a, b))
def test_get_translation_language_codes_that_need_reviewers_for_multi_lang(
            self):
        stats = suggestion_services.get_community_contribution_stats()
        stats.set_translation_suggestion_count_for_language_code('hi', 1)
        stats.set_translation_suggestion_count_for_language_code('fr', 1)

        language_codes_that_need_reviewers = (
            stats.get_translation_language_codes_that_need_reviewers()
        )

        self.assertEqual(
            language_codes_that_need_reviewers, {'hi', 'fr'})