In https://github.com/google/s2geometry/pull/562, `S1Angle.__repr__` prints `S1Angle(45.0...)`, which is not even unambiguous. It should be `S1Angle.from_degrees(45.0)`.
In #562,
S1Angle.__repr__printsS1Angle(45.0...), which is not even unambiguous. It should beS1Angle.from_degrees(45.0).