[pre-commit.ci] auto fixes from pre-commit.com hooks

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tests/test_tools.py

@@ -165,6 +165,8 @@ def test_infercnv_more_than_2_chunks(adata_full_mock, gene_res_actual, x_res_act
     np.testing.assert_array_equal(per_gene_mtx.toarray()[3], np.array([0, 0, 0, 0, 0, 0.921875, 0.703125, 0, 0, 0]))
     np.testing.assert_array_equal(res.toarray(), x_res_actual)
     assert chr_pos == {"chr1": 0, "chr2": 3}, "chr_pos is not as expected"
+
+
 def test_infercnv_manual_reference(adata_oligodendroma):
     cnv.tl.infercnv(adata_oligodendroma, reference=np.ones(adata_oligodendroma.shape[1]))