A RuntimeError is now raised when entering context managers more than once,
for objects for which it would cause undefined behavior.
Impacted classes are the following:
-
Buckets:
-
FixedWindowCounter -
LeakyBucket -
SlidingWindowLog -
BucketGroup -
Rate Controllers (not considering the underlying buckets):
-
Scheduler
The __slots__ attribute was removed from all buckets and rate controllers,
for practical reasons <https://stackoverflow.com/a/53089249>_.