Unable to import any synthesizer if GTTS is not installed.

[zaptrem]

When doing the following:

from vocode.turn_based.synthesizer import AnyNonGoogleSynthesizer

The following error occurs when the optional dependency GTTS isn't installed since it's imported by the init file:

Traceback (most recent call last):
  File "main.py", line 19, in <module>
    from coqui_synthesizer import CoquiSynthesizer
  File "/home/runner/YC-Telegram-Bot/coqui_synthesizer.py", line 7, in <module>
    from vocode.turn_based.synthesizer.base_synthesizer import BaseSynthesizer
  File "/home/runner/YC-Telegram-Bot/venv/lib/python3.10/site-packages/vocode/turn_based/synthesizer/__init__.py", line 7, in <module>
    from vocode.turn_based.synthesizer.google_synthesizer import GoogleSynthesizer
  File "/home/runner/YC-Telegram-Bot/venv/lib/python3.10/site-packages/vocode/turn_based/synthesizer/google_synthesizer.py", line 6, in <module>
    from google.cloud import texttospeech_v1beta1 as tts
ImportError: cannot import name 'texttospeech_v1beta1' from 'google.cloud' (unknown location)

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This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

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[arpagon]

This is important, I will review it.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions[bot]]

This issue has been automatically closed due to inactivity. Thank you for your contributions.

[coyotwill]

Here is my workaround for this issue. Add this to a file that is loaded early in your application:

import logging
import sys
from types import ModuleType

google_cloud_patched = False

# Avoid dependency on google.cloud when it's not installed
try:
    import google.cloud
except ModuleNotFoundError:
    # Patch vocode to avoid depending on google.cloud
    class DummyGoogleSynthModule(ModuleType):
        GoogleSynthesizer = None

    sys.modules['vocode.turn_based.synthesizer.google_synthesizer'] = DummyGoogleSynthModule(f'Module disabled in {__file__}')
    logging.info("Google Cloud module not installed. Patched.")
    google_cloud_patched = True