AttributeError: 'Num2Word_IT' object has no attribute 'to_year'

[grigio]

Describe the bug
Mimic3 works on Docker with italian voices but it seems to crash with years

To Reproduce
Steps to reproduce the behavior:

• type: "Fino a quando, dopo quattro anni di relazione, dal 2016 al 2020, e un anno di convivenza, la donna aveva scoperto per caso la malattia del compagno."
• pick Italian

Expected behavior
it should read

Log files

ERROR:mimic3_http.app:'Num2Word_IT' object has no attribute 'to_year'
Traceback (most recent call last):
  File "/home/mimic3/app/.venv/lib/python3.9/site-packages/quart/app.py", line 1673, in full_dispatch_request
    result = await self.dispatch_request(request_context)
  File "/home/mimic3/app/.venv/lib/python3.9/site-packages/quart/app.py", line 1718, in dispatch_request
    return await self.ensure_async(handler)(**request_.view_args)
  File "/home/mimic3/app/mimic3_http/app.py", line 215, in app_tts
    wav_bytes = await text_to_wav(
  File "/home/mimic3/app/mimic3_http/app.py", line 103, in text_to_wav
    wav_bytes = await future
  File "/home/mimic3/app/mimic3_http/synthesis.py", line 125, in do_synthesis_proc
    result = do_synthesis(item, mimic3)
  File "/home/mimic3/app/mimic3_http/synthesis.py", line 81, in do_synthesis
    raise e
  File "/home/mimic3/app/mimic3_http/synthesis.py", line 61, in do_synthesis
    mimic3.speak_text(params.text, text_language=params.text_language)
  File "/home/mimic3/app/mimic3_tts/tts.py", line 380, in speak_text
    for sent_phonemes, break_type in voice.text_to_phonemes(
  File "/home/mimic3/app/mimic3_tts/voice.py", line 420, in text_to_phonemes
    for sentence in gruut.sentences(text, lang=text_language):
  File "/home/mimic3/app/.venv/lib/python3.9/site-packages/gruut/__init__.py", line 79, in sentences
    graph, root = text_processor(text, lang=lang, ssml=ssml, **process_args)
  File "/home/mimic3/app/.venv/lib/python3.9/site-packages/gruut/text_processor.py", line 441, in __call__
    return self.process(*args, **kwargs)
  File "/home/mimic3/app/.venv/lib/python3.9/site-packages/gruut/text_processor.py", line 1079, in process
    if pipeline_transform(self._verbalize_number, graph, root):
  File "/home/mimic3/app/.venv/lib/python3.9/site-packages/gruut/utils.py", line 351, in pipeline_transform
    if transform_func(graph, leaf_node):
  File "/home/mimic3/app/.venv/lib/python3.9/site-packages/gruut/text_processor.py", line 2146, in _verbalize_number
    num_str = num2words(final_num, **num2words_kwargs)
  File "/home/mimic3/app/.venv/lib/python3.9/site-packages/num2words/__init__.py", line 96, in num2words
    return getattr(converter, "to_{}".format(to))(number, **kwargs)
AttributeError: 'Num2Word_IT' object has no attribute 'to_year'

[synesthesiam]

The num2words package must not support years in Italian. I'd suggest looking in to Piper which uses espeak-ng under the hood instead.