Fix imports for TS autogenerated imports

[rogebrd]

Checklist

General Contributing

• Have you read the Code of Conduct and signed the CLA?

Is This a Code Change?

• Non-code related change (markdown/git settings etc)
• Code Change
• Example/Test Code Change

Validation

• Have you ran tox?
• Do the tests pass?

[codecov]

Codecov Report

Merging #239 (c6a15ff) into main (c1d8f0d) will decrease coverage by 0.00%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##             main     #239      +/-   ##
==========================================
- Coverage   51.65%   51.65%   -0.01%     
==========================================
  Files          37       37              
  Lines        8392     8393       +1     
  Branches     1789     1790       +1     
==========================================
  Hits         4335     4335              
- Misses       3743     3744       +1     
  Partials      314      314              

Flag	Coverage Δ
unit	51.65% <66.66%> (-0.01%)	⬇️

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Impacted Files	Coverage Δ
stone/backends/tsd_client.py	55.31% <0.00%> (-0.60%)	⬇️
stone/backends/tsd_helpers.py	50.00% <100.00%> (+1.31%)	⬆️
stone/backends/tsd_types.py	37.91% <100.00%> (-0.52%)	⬇️

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