Add str_mapping

[durandtibo]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (7041387) 99.53% compared to head (b370b08) 99.54%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #255   +/-   ##
=======================================
  Coverage   99.53%   99.54%           
=======================================
  Files           9       10    +1     
  Lines        1086     1095    +9     
  Branches      108      109    +1     
=======================================
+ Hits         1081     1090    +9     
  Misses          5        5           

Impacted Files	Coverage Δ
src/redcat/batchdict.py	93.33% <100.00%> (+0.09%)	⬆️
src/redcat/format.py	100.00% <100.00%> (ø)

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