Code improvements while working on EV PR 758

[joanise]

See EveryVoiceTTS/EveryVoice#759

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
fs2/tests/test_cli.py	96% smaller
fs2/tests/test_chunking.py	66% smaller
fs2/config/__init__.py	64% smaller
fs2/cli/synthesize.py	19% smaller

[codecov]

Codecov Report

❌ Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 49.64%. Comparing base (eddda36) to head (83f349e).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
fs2/cli/synthesize.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #130   +/-   ##
=======================================
  Coverage   49.64%   49.64%           
=======================================
  Files          27       27           
  Lines        1982     1984    +2     
=======================================
+ Hits          984      985    +1     
- Misses        998      999    +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[roedoejet]

just a clarifying question, looks good to me though

[roedoejet]

What's the reason for this? don't we just mean it to be a list?

[joanise]

Sometimes we pass tuples in, and that's a type mismatch -- we do so in unit tests for sure, maybe elsewhere I forget. I figured it made more sense to make the type annotation more flexible than force the use of actual lists everywhere, given any sequence will behave correctly here.