Peder Bergebakken Sundt
c5165cc427
fixes:
```
_________________________________ test_timing __________________________________
def test_timing():
step = step_sleep()
> assert step.duration == pytest.approx(0.25, abs=1e-2)
E assert 0.2613552769180387 == 0.25 ± 1.0e-02
E
E comparison failed
E Obtained: 0.2613552769180387
E Expected: 0.25 ± 1.0e-02
tests/test_step.py:36: AssertionError
```