refactor: minor improvement to fix coverage report status

[xushiyan]

Description

Minor code improvement to make main branch cov report green.

#150

How are the changes test-covered

• N/A
• Automated tests (unit and/or integration tests)
• Manual tests
  • Details are described below

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.64%. Comparing base (abb3e63) to head (640fc8f).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #173      +/-   ##
==========================================
+ Coverage   90.44%   90.64%   +0.20%     
==========================================
  Files          19       19              
  Lines         973      973              
==========================================
+ Hits          880      882       +2     
+ Misses         93       91       -2     

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