On , I learnt ...
About the :ALEInfo
command
The ALE plugin for Vim includes a
:ALEInfo
command that shows how ALE is configured for the current file and the
output of any commands that have run. This is useful for debugging if your
linters or fixers aren’t behaving.
https://github.com/dense-analysis/ale#5ii-how-can-i-see-what-ale-has-configured-for-the-current-file