NFC: apply black

jsiirola · jsiirola · commit 6e2db622df1e · 2024-02-26T15:37:48.000-07:00
diff --git a/pyomo/common/dependencies.py b/pyomo/common/dependencies.py
@@ -490,6 +490,7 @@ class DeferredImportCallbackFinder:
     :py:class:`DeferredImportModule`.
 
     """
+
     _callbacks = {}
 
     def find_spec(self, fullname, path, target=None):
