ruff format

Signed-off-by: Ananth Subramaniam <ansubramania@nvidia.com>

Author: ananthsub

tests/unit_tests/utils/test_import_utils.py

@@ -249,7 +249,7 @@ def test_import_from_with_alternative(self):
     def test_fallback_module(self):
         """Test safe_import_from with a fallback module."""
         # First import fails, but fallback succeeds
-        with patch('importlib.import_module') as mock_import:
+        with patch("importlib.import_module") as mock_import:
             # Mock the first import to fail as AttributeError
             def side_effect(name):
                 if name == "primary_module":
@@ -346,25 +346,25 @@ def test_get_torch_version_returns_version(self):
 
     def test_get_torch_version_fallback(self):
         """Test that get_torch_version falls back to '0.0.0' when torch.__version__ is unavailable."""
-        with patch('torch.__version__', side_effect=AttributeError("No version attribute")):
+        with patch("torch.__version__", side_effect=AttributeError("No version attribute")):
             version = get_torch_version()
             assert version == PkgVersion("0.0.0")
 
     def test_is_torch_min_version_true(self):
         """Test is_torch_min_version returns True when torch version meets minimum."""
-        with patch('nemo_lm.utils.import_utils.get_torch_version', return_value=PkgVersion("2.0.0")):
+        with patch("nemo_lm.utils.import_utils.get_torch_version", return_value=PkgVersion("2.0.0")):
             assert is_torch_min_version("1.9.0") is True
             assert is_torch_min_version("2.0.0") is True
 
     def test_is_torch_min_version_false(self):
         """Test is_torch_min_version returns False when torch version is below minimum."""
-        with patch('nemo_lm.utils.import_utils.get_torch_version', return_value=PkgVersion("1.8.0")):
+        with patch("nemo_lm.utils.import_utils.get_torch_version", return_value=PkgVersion("1.8.0")):
             assert is_torch_min_version("1.9.0") is False
             assert is_torch_min_version("2.0.0") is False
 
     def test_is_torch_min_version_without_equality(self):
         """Test is_torch_min_version with check_equality=False."""
-        with patch('nemo_lm.utils.import_utils.get_torch_version', return_value=PkgVersion("2.0.0")):
+        with patch("nemo_lm.utils.import_utils.get_torch_version", return_value=PkgVersion("2.0.0")):
             assert is_torch_min_version("1.9.0", check_equality=False) is True
             assert is_torch_min_version("2.0.0", check_equality=False) is False
             assert is_torch_min_version("2.1.0", check_equality=False) is False