Fix linting error following #398 merge

[quantumjot]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 85.58%. Comparing base (a933a34) to head (fcdd8c1).

Files	Patch %	Lines
btrack/io/_localization.py	0.00%	0 Missing and 1 partial ⚠️

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #404   +/-   ##
=======================================
  Coverage   85.58%   85.58%           
=======================================
  Files          31       31           
  Lines        2206     2206           
  Branches      405      405           
=======================================
  Hits         1888     1888           
  Misses        235      235           
  Partials       83       83           

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