Merge branch '45-replace-the-use-of-class-by-inherits-in-order-to-test-the-classes' into 'dev'

Resolve "Replace the use of 'class' by 'inherits' in order to test the classes of inputs"

Closes #45

See merge request !21
1 job for dev in 1 minute and 44 seconds (queued for 5 minutes and 59 seconds)
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  Check
passed check_as_cran_patched #192420

00:01:44