fix: Add access client in parse clients

[mbfakourii]

Pull Request

• Report security issues confidentially.
• Any contribution is under this license.
• Link this pull request to an issue.

Issue

Closes: #1023

Approach

Add a function to access client in parse clients.

Tasks

• Add tests
• Add changes to documentation (guides, repository pages, code comments)

[parse-github-assistant]

I will reformat the title to use the proper commit message syntax.

[parse-github-assistant]

Thanks for opening this pull request!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.48%. Comparing base (c388545) to head (a5f716e).
Report is 8 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1024      +/-   ##
==========================================
+ Coverage   43.37%   43.48%   +0.11%     
==========================================
  Files          61       61              
  Lines        3463     3463              
==========================================
+ Hits         1502     1506       +4     
+ Misses       1961     1957       -4     

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