35   def create(results):  argument
42     results = [(t, r) for (t, r) in results if not r.is_skipped]
43     if not results:
45     return GroupedResult(results)
47   def __init__(self, results):  argument
48     self.results = results
74   def create(results):  argument
78     assert results
80     if len(results) == 1:
81       return results[0]
82     return RerunResult(results)
84   def __init__(self, results):  argument
88     assert results
90     last = results[-1]
93     self.results = results