added meta as export format

[MartinKl]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 84.34783% with 18 lines in your changes missing coverage. Please review.

Project coverage is 83.15%. Comparing base (8bbcc2b) to head (36b89eb).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/exporter/meta.rs	85.18%	8 Missing and 8 partials ⚠️
src/lib.rs	66.66%	1 Missing ⚠️
src/test_util.rs	75.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #313      +/-   ##
==========================================
+ Coverage   83.14%   83.15%   +0.01%     
==========================================
  Files          52       53       +1     
  Lines       19342    19455     +113     
  Branches    19342    19455     +113     
==========================================
+ Hits        16082    16178      +96     
- Misses       1182     1191       +9     
- Partials     2078     2086       +8     

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