fmt: black formatting test_interaction.py
@@ -748,6 +748,7 @@ class TestAnisotropicFriction:
# Slender Body Theory Unit Tests
+
class TestAuxiliaryFunctionsForSlenderBodyTheory:
@pytest.mark.parametrize("n_elem", [2, 3, 5, 10, 20])
def test_sum_over_elements(self, n_elem):
