Add NoDiscard attributes

[Baptouuuu]

Fix #18

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (613b938) to head (4a03f86).
⚠️ Report is 3 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##             develop       #20   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity       280       280           
===========================================
  Files             58        58           
  Lines           1458      1458           
===========================================
  Hits            1458      1458           

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