How to use the pykakasi.H2a function in pykakasi

("しつもん",   ("si",1)),
            ("ちがい", ("ti",1)),
            ("きゃ", ("kya", 2)), ("きゅ", ("kyu", 2)), ("きょ", ("kyo", 2)),
            ("しゃ", ("sya", 2)), ("しゅ", ("syu", 2)), ("しょ", ("syo", 2)),
            ("ちゃ", ("tya", 2)), ("ちゅ", ("tyu", 2)), ("ちょ", ("tyo", 2)),
            ("にゃ", ("nya", 2)), ("にゅ", ("nyu", 2)), ("にょ", ("nyo", 2)),
            ("りゃ", ("rya", 2)), ("りゅ", ("ryu", 2)), ("りょ", ("ryo", 2)),
            ("ざ", ("za", 1)), ("じ", ("zi", 1)), ("ず", ("zu", 1)),
            ("ぜ", ("ze", 1)), ("ぞ", ("zo", 1)),
            ("だ", ("da", 1)), ("ぢ", ("zi", 1)), ("づ", ("zu", 1)),
            ("で", ("de", 1)), ("ど", ("do", 1)),
            ("た", ("ta", 1)), ("ち", ("ti", 1)), ("つ", ("tu", 1)),
            ("て", ("te", 1)), ("と", ("to", 1))
        ]

        h = pykakasi.H2a(method="Kunrei")
        for case, result in TESTS:
            self.assertEqual(h.convert(case), result)

def test_H2a_passport(self):

        TESTS = [
            ("しつもん",("shi",1)),
            ("ちがい", ("chi",1)),
            ("おおの",("o",2)),
            ("さいとう",("sa",1)),
            ("とう",("to",2)),
            ("なんば", ("na", 1)),
            ("んば", ("mba", 2))
        ]

        h = pykakasi.H2a(method="Passport")
        for case, result in TESTS:
            self.assertEqual(h.convert(case), result)

def test_H2a(self):

        TESTS = [
            ("かんたん",   ("ka", 1)),
            ("にゃ", ("nya",2)),
            ("っき", ("kki",2)),
            ("っふぁ", ("ffa", 3)),
            ("しつもん",   ("shi",1)),
            ("ちがい", ("chi",1)),
        ]

        h = pykakasi.H2a()
        for case, result in TESTS:
            self.assertEqual(h.convert(case), result)