- update to 0.9.0:
* removed legacy implementation of `HierarchicalMachine` from
the package
* Bug #551: Fix active state styling in `GraphMachine` (thanks
@betaboon)
* Bug #554: Fix issues related to scopes and queueing in
`HierachicalMachine` (thanks @jankrejci)
* Bug #568: Reflexive transitions (dest: '=') had not been
resolved correctly when source was a wildcard (thanks @jnu)
* Bug #568: HSM did not detect reflexive transitions if src was
a parent state (thanks @lostcontrol)
* Bug #569: Fix implicit fallback to `graphviz` when
`pygraphviz` was not installed (thanks @FridjofAmundsen)
* Bug #580: Fix `on_timeout` callback resolution when timeout
had been initialized with `timeout=0` (thanks @Rysbai)
* Bug #582: Last label in `GraphSupport` was not correctly
aligned when `show_attributes=True` (thanks @spagh-eddie)
* Feature: Add pyi stub files for better type hinting. Since
many functions and constructors allow rather arbitrary
arguments time will tell whether typing should be strict (and
cause more mypy issues) or more relaxed (and thus less
precise).
* Feature: Reviewed and improved method documentation
* Feature #549: Add `may` transition check to transitions
(thanks @artofhuman)
* Feature #552: Refactored error handling to be able to handle
`MachineError` in `on_exception` callbacks (thanks @kpihus)
* Feature: Add `mypy` to test workflow
* PR #461: Add `Retry` state to supported state stereotypes
(thanks @rgov)