format code

tests/providers/test_bank.py

@@ -57,6 +57,7 @@ def test_bank(self, faker, num_samples):
             bank = faker.bank()
             assert bank in AzAzBankProvider.banks
 
+
 class TestCsCz:
     """Test cs_CZ bank provider"""
 
@@ -72,7 +73,6 @@ def test_iban(self, faker, num_samples):
             assert re.fullmatch(r"\d{2}\d{20}", iban[2:])
 
 
-
 class TestNoNo:
     """Test no_NO bank provider"""