Rerouted (retagged, needs approval). The tag now points at a different commit than when this version was published. The Lamdera package server serves a copy recovered from https://github.com/nikita-volkov/typeclasses.
What we checked: Tag 1.6.0 is still on github.com/nikita-volkov/typeclasses; its commit 9a34425b67b5 is from 2019-07-25 15:07 UTC, after the version was published (2019-07-25 15:07 UTC); elm.json is byte-identical to package.elm-lang.org's; the exposed modules match docs.json; the zip's SHA-1 is not the published one and nothing else confirms its contents.
We could not verify this copy against what was published, so the Lamdera compiler asks before using it (y/n). Without a terminal, as in CI, it stops with an error unless approved:
lamdera make --auto-approve-package-rerouting approves rerouted versions for that run,LAMDERA_AUTO_APPROVE_PACKAGE_REROUTING=1 does the same for every run in that environment,LAMDERA_CACHE=off skips the Lamdera package server altogether: packages come from package.elm-lang.org and GitHub only, as with elm, and a rerouted version then fails to download.Details · package.elm-lang.org's zip: https://github.com/nikita-volkov/typeclasses/zipball/1.6.0/
Extensions to the Maybe API, which utilise typeclasses.
Map the element of Maybe to a type which has an instance of Monoid,
or use its identity, when Maybe is Nothing.
Extract a value or use the Monoid's identity.