fix: apply pre-commit formatting fixes

Author: Tanisha127

tests/anoph/test_heterozygosity.py

@@ -206,6 +206,7 @@ def test_plot_roh(fixture, api: AnophelesHetAnalysis):
     # Check results.
     assert isinstance(fig, bokeh.models.GridPlot)
 
+
 @parametrize_with_cases("fixture,api", cases=".")
 def test_sample_count_het(fixture, api: AnophelesHetAnalysis):
     # Set up test parameters.
@@ -233,6 +234,7 @@ def test_sample_count_het(fixture, api: AnophelesHetAnalysis):
     assert (df["heterozygosity"] >= 0).all()
     assert (df["heterozygosity"] <= 1).all()
 
+
 @parametrize_with_cases("fixture,api", cases=".")
 def test_cohort_heterozygosity(fixture, api: AnophelesHetAnalysis):
     # Set up test parameters.
@@ -257,4 +259,4 @@ def test_cohort_heterozygosity(fixture, api: AnophelesHetAnalysis):
     assert len(df) > 0
     assert (df["n_samples"] > 0).all()
     assert (df["mean_heterozygosity"] >= 0).all()
-    assert (df["mean_heterozygosity"] <= 1).all()
+    assert (df["mean_heterozygosity"] <= 1).all()