-------------------
This release makes it an error to assign ``settings = settings(...)``
as a class attribute on a :class:`~hypothesis.stateful.RuleBasedStateMachine`.
This has never had any effect, and it should be used as a decorator instead:
.. code-block: python
class BadMachine(RuleBasedStateMachine):
"""This doesn't do anything, and is now an error!"""
settings = settings(derandomize=True)
settings(derandomize=True)
class GoodMachine(RuleBasedStateMachine):
"""This is the right way to do it :-)"""