FIX: Multiple docstrings improvements

[maxcapodi78]

Description

Improved the way the autocomplete works thanks to better and more correct Returns values.

Issue linked

Please mention the issue number or describe the problem this pull request addresses.

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate tests (unit, integration, system).
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved by the PR if any.
• I have agreed with the Contributor License Agreement (CLA).

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[codecov]

Codecov Report

Attention: Patch coverage is 90.43478% with 33 lines in your changes missing coverage. Please review.

Project coverage is 85.29%. Comparing base (4f47c08) to head (a639b6c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5563      +/-   ##
==========================================
+ Coverage   81.37%   85.29%   +3.92%     
==========================================
  Files         151      151              
  Lines       60751    60751              
==========================================
+ Hits        49435    51819    +2384     
+ Misses      11316     8932    -2384     

[Samuelopez-ansys]

Great!