fix back exist_ok

[codeskyblue]

No description provided.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

Attention: Patch coverage is 20.00000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 27.00%. Comparing base (9336c29) to head (7028895).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
uiautomator2/__init__.py	20.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1059      +/-   ##
==========================================
- Coverage   27.03%   27.00%   -0.03%     
==========================================
  Files          20       20              
  Lines        2793     2796       +3     
  Branches      422      422              
==========================================
  Hits          755      755              
- Misses       2009     2012       +3     
  Partials       29       29              

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