Be consistent about __all__ in __init__

[mathialo]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.50%. Comparing base (62c5b5a) to head (653dc8b).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #409      +/-   ##
==========================================
- Coverage   74.51%   74.50%   -0.02%     
==========================================
  Files          40       40              
  Lines        3351     3353       +2     
==========================================
+ Hits         2497     2498       +1     
- Misses        854      855       +1     

Files with missing lines	Coverage Δ
cognite/extractorutils/configtools/__init__.py	100.00% <100.00%> (ø)
cognite/extractorutils/uploader/__init__.py	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes