The latest clippy (90.1.65 for me) added a lint which checks for types
that implement `PartialEq` and could implement `Eq`
(`derive_partial_eq_without_eq`). Add a `derive(Eq)` in a bunch of
places to satisfy this lint.
source files.
Normalize the header include statement within the documentation.
Limit `AMpush()` usage within the quickstart example to variable
assignment.
