How to use the pypinyin.TONE3 function in pypinyin

    [dict(style=TONE3, strict=False, heteronym=True), [['zhao1', 'chao2'],
                                                       ['yang2']]],
    [dict(style=INITIALS), [['zh'], ['']]],
    [dict(style=INITIALS, heteronym=True), [['zh', 'ch'], ['']]],
    [dict(style=INITIALS, strict=False), [['zh'], ['y']]],
    [dict(style=INITIALS, strict=False, heteronym=True), [['zh', 'ch'],
                                                          ['y']]],
    [dict(style=FIRST_LETTER), [['z'], ['y']]],
    [dict(style=FIRST_LETTER, heteronym=True), [['z', 'c'], ['y']]],
    [dict(style=FIRST_LETTER, strict=False), [['z'], ['y']]],
    [dict(style=FIRST_LETTER, strict=False, heteronym=True), [['z', 'c'],
                                                              ['y']]],
    [dict(style=FINALS), [['ao'], ['iang']]],
    [dict(style=FINALS, heteronym=True), [['ao'], ['iang']]],
    [dict(style=FINALS, strict=False), [['ao'], ['ang']]],
    [dict(style=FINALS, strict=False, heteronym=True), [['ao'], ['ang']]],
    [dict(style=FINALS_TONE), [['āo'], ['iáng']]],

['迂', dict(style=FINALS), ['v']],
    ['迂', dict(style=FINALS, strict=False), ['u']],
    ['约', dict(style=NORMAL), ['yue']],
    ['约', dict(style=FINALS), ['ve']],
    ['约', dict(style=FINALS, strict=False), ['ue']],
    ['冤', dict(style=NORMAL), ['yuan']],
    ['冤', dict(style=FINALS), ['van']],
    ['冤', dict(style=FINALS, strict=False), ['uan']],

    ['鱼', dict(style=NORMAL), ['yu']],
    ['鱼', dict(style=NORMAL, strict=False), ['yu']],
    ['鱼', dict(style=TONE), ['yú']],
    ['鱼', dict(style=TONE, strict=False), ['yú']],
    ['鱼', dict(style=TONE2), ['yu2']],
    ['鱼', dict(style=TONE2, strict=False), ['yu2']],
    ['鱼', dict(style=TONE3), ['yu2']],
    ['鱼', dict(style=TONE3, strict=False), ['yu2']],
    ['鱼', dict(style=INITIALS), ['']],
    ['鱼', dict(style=INITIALS, strict=False), ['y']],
    ['鱼', dict(style=FIRST_LETTER), ['y']],
    ['鱼', dict(style=FIRST_LETTER, strict=False), ['y']],
    ['鱼', dict(style=FINALS), ['v']],
    ['鱼', dict(style=FINALS, strict=False), ['u']],
    ['鱼', dict(style=FINALS_TONE), ['ǘ']],
    ['鱼', dict(style=FINALS_TONE, strict=False), ['ú']],
    ['鱼', dict(style=FINALS_TONE2), ['v2']],
    ['鱼', dict(style=FINALS_TONE2, strict=False), ['u2']],
    ['鱼', dict(style=FINALS_TONE3), ['v2']],
    ['鱼', dict(style=FINALS_TONE3, strict=False), ['u2']],

    ['约', dict(style=NORMAL), ['yue']],
    ['约', dict(style=NORMAL, strict=False), ['yue']],

"""包含声明和韵母的词语"""
    hans = '中心'
    # 默认风格，带声调
    assert pinyin(hans) == [['zh\u014dng'], ['x\u012bn']]
    assert pinyin(hans, strict=False) == [['zh\u014dng'], ['x\u012bn']]
    # 普通风格，不带声调
    assert pinyin(hans, NORMAL) == [['zhong'], ['xin']]
    assert pinyin(hans, NORMAL, strict=False) == [['zhong'], ['xin']]
    # 声调风格，拼音声调在韵母第一个字母上
    assert pinyin(hans, TONE) == [['zh\u014dng'], ['x\u012bn']]
    assert pinyin(hans, TONE, strict=False) == [['zh\u014dng'], ['x\u012bn']]
    # 声调风格2，即拼音声调在各个声母之后，用数字 [1-4] 进行表示
    assert pinyin(hans, TONE2) == [['zho1ng'], ['xi1n']]
    assert pinyin(hans, TONE2, strict=False) == [['zho1ng'], ['xi1n']]
    # 声调风格3，即拼音声调在各个拼音之后，用数字 [1-4] 进行表示
    assert pinyin(hans, TONE3) == [['zhong1'], ['xin1']]
    assert pinyin(hans, TONE3, strict=False) == [['zhong1'], ['xin1']]
    # 声母风格，只返回各个拼音的声母部分
    assert pinyin(hans, INITIALS) == [['zh'], ['x']]
    assert pinyin(hans, INITIALS, strict=False) == [['zh'], ['x']]
    # 首字母风格，只返回拼音的首字母部分
    assert pinyin(hans, FIRST_LETTER) == [['z'], ['x']]
    assert pinyin(hans, FIRST_LETTER, strict=False) == [['z'], ['x']]
    # 注音风格，带声调
    assert pinyin(hans, BOPOMOFO) == [['ㄓㄨㄥ'], ['ㄒㄧㄣ']]
    assert pinyin(hans, BOPOMOFO, strict=False) == [['ㄓㄨㄥ'], ['ㄒㄧㄣ']]
    # 注音风格，首字母
    assert pinyin(hans, BOPOMOFO_FIRST) == [['ㄓ'], ['ㄒ']]
    assert pinyin(hans, BOPOMOFO_FIRST, strict=False) == [['ㄓ'], ['ㄒ']]
    # test CYRILLIC style
    assert pinyin(hans, CYRILLIC) == [['чжун1'], ['синь1']]
    assert pinyin(hans, CYRILLIC, strict=False) == [['чжун1'], ['синь1']]

['央', dict(style=FINALS), ['iang']],
    ['央', dict(style=FINALS, strict=False), ['ang']],
    ['英', dict(style=NORMAL), ['ying']],
    ['英', dict(style=FINALS), ['ing']],
    ['英', dict(style=FINALS, strict=False), ['ing']],
    ['雍', dict(style=NORMAL), ['yong']],
    ['雍', dict(style=FINALS), ['iong']],
    ['雍', dict(style=FINALS, strict=False), ['ong']],

    ['宜', dict(style=NORMAL), ['yi']],
    ['宜', dict(style=NORMAL, strict=False), ['yi']],
    ['宜', dict(style=TONE), ['yí']],
    ['宜', dict(style=TONE, strict=False), ['yí']],
    ['宜', dict(style=TONE2), ['yi2']],
    ['宜', dict(style=TONE2, strict=False), ['yi2']],
    ['宜', dict(style=TONE3), ['yi2']],
    ['宜', dict(style=TONE3, strict=False), ['yi2']],
    ['宜', dict(style=INITIALS), ['']],
    ['宜', dict(style=INITIALS, strict=False), ['y']],
    ['宜', dict(style=FIRST_LETTER), ['y']],
    ['宜', dict(style=FIRST_LETTER, strict=False), ['y']],
    ['宜', dict(style=FINALS), ['i']],
    ['宜', dict(style=FINALS, strict=False), ['i']],
    ['宜', dict(style=FINALS_TONE), ['í']],
    ['宜', dict(style=FINALS_TONE, strict=False), ['í']],
    ['宜', dict(style=FINALS_TONE2), ['i2']],
    ['宜', dict(style=FINALS_TONE2, strict=False), ['i2']],
    ['宜', dict(style=FINALS_TONE3), ['i2']],
    ['宜', dict(style=FINALS_TONE3, strict=False), ['i2']],

    ['盐', dict(style=NORMAL), ['yan']],
    ['盐', dict(style=NORMAL, strict=False), ['yan']],

def speak(self, text):
        syllables = lazy_pinyin(text, style=pypinyin.TONE3)
        print(syllables)
        delay = 0
        
        def preprocess(syllables):
            temp = []
            for syllable in syllables:
                for p in TextToSpeech.punctuation:
                    syllable = syllable.replace(p, "")
                if syllable.isdigit():
                    syllable = atc.num2chinese(syllable)
                    new_sounds = lazy_pinyin(syllable, style=pypinyin.TONE3)
                    for e in new_sounds:
                        temp.append(e)
                else:
                    temp.append(syllable)
            return temp

def speak(self, text):
        syllables = lazy_pinyin(text, style=pypinyin.TONE3)
        default_logger.debug(syllables)
        delay = 0

        def preprocess(syllables):
            temp = []
            for syllable in syllables:
                for p in self.punctuation:
                    syllable = syllable.replace(p, '')
                if syllable.isdigit():
                    syllable = num2chinese(syllable)
                    new_sounds = lazy_pinyin(syllable, style=pypinyin.TONE3)
                    for e in new_sounds:
                        temp.append(e)
                else:
                    temp.append(syllable)
            return temp

def preprocess(syllables):
            temp = []
            for syllable in syllables:
                for p in self.punctuation:
                    syllable = syllable.replace(p, '')
                if syllable.isdigit():
                    syllable = num2chinese(syllable)
                    new_sounds = lazy_pinyin(syllable, style=pypinyin.TONE3)
                    for e in new_sounds:
                        temp.append(e)
                else:
                    temp.append(syllable)
            return temp

def look_up(self, word):
        result = pinyin(word, style=pypinyin.TONE3)
        result = [self.word_2_safetext(item[0]) for item in result]
        return result

def synthesize(self, text, src, dst):
        """
        Synthesize .wav from text
        src is the folder that contains all syllables .wav files
        dst is the destination folder to save the synthesized file
        """
        print("Synthesizing ...")
        delay = 0
        increment = 355 # milliseconds
        pause = 500 # pause for punctuation
        syllables = lazy_pinyin(text, style=pypinyin.TONE3)

        # initialize to be complete silence, each character takes up ~500ms
        result = AudioSegment.silent(duration=500*len(text))
        for syllable in syllables:
            path = src+syllable+".wav"
            sound_file = Path(path)
            # insert 500 ms silence for punctuation marks
            if syllable in TextToSpeech.punctuation:
                short_silence = AudioSegment.silent(duration=pause)
                result = result.overlay(short_silence, position=delay)
                delay += increment
                continue
            # skip sound file that doesn't exist
            if not sound_file.is_file():
                continue
            segment = AudioSegment.from_wav(path)