HypothesisWorks/hypothesis: Hypothesis for Python - version 4.55.2

This release expands the set of test cases that Hypothesis saves in its database for future runs to include a representative set of "structurally different" test cases - e.g. it might try to save test cases where a given list is empty or not. Currently this is unlikely to have much user visible impact except to produce slightly more consistent behaviour between consecutive runs of a test suite. It is mostly groundwork for future improvements which will exploit this functionality more effectively. The canonical version of these notes (with links) is on readthedocs