# Authors Authors in the chronological orders of contributions - Raymond Hettiger - OrderedSet was implemented by Elia Robyn Lake (maiden name: Robyn Speer). - StableSet was implemented by Idan Miara, built upon the foundations of OrderedSet. - Jon Crall contributed changes and tests to make it fit the Python set API. - Roman Inflianskas added the original type annotations. - Sep Dehpour added OrderlySet and SortedSet. - Michał Górny cleaned up some small issues with mypy and deprecated use of