Fix LatexFailed import

[chrispyles]

No description provided.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (8d677bb) 82.30% compared to head (5ccec35) 82.27%.
Report is 5 commits behind head on master.

Files	Patch %	Lines
otter/export/exporters/via_latex.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #775      +/-   ##
==========================================
- Coverage   82.30%   82.27%   -0.04%     
==========================================
  Files          64       64              
  Lines        4392     4395       +3     
==========================================
+ Hits         3615     3616       +1     
- Misses        777      779       +2     

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