gh-421: Take out mappers

[JaimeRZP]

fixes: #421

[codecov]

Codecov Report

❌ Patch coverage is 39.34426% with 37 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
heracles/cli.py	11.90%	37 Missing ⚠️

Flag	Coverage Δ
py3.10	82.28% <39.34%> (-1.08%)	⬇️
py3.11	82.28% <39.34%> (-1.08%)	⬇️
py3.12	82.24% <39.34%> (-1.08%)	⬇️
py3.13	81.82% <39.34%> (-1.08%)	⬇️
py3.9	82.49% <39.34%> (-1.08%)	⬇️

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Files with missing lines	Coverage Δ
heracles/dices/jackknife.py	96.04% <100.00%> (+0.03%)	⬆️
heracles/fields.py	96.25% <100.00%> (-0.20%)	⬇️
heracles/mapping.py	94.64% <100.00%> (ø)
heracles/cli.py	43.70% <11.90%> (-4.30%)	⬇️

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