Fix restyle

src/python_testing/TC_IDM_4_2.py

@@ -27,10 +27,9 @@
 from chip.exceptions import ChipStackError
 from chip.interaction_model import Status
 from matter_testing_support import (AttributeChangeCallback, MatterBaseTest, async_test_body, default_matter_test_main,
-                   wait_for_attribute_report)
+                                    wait_for_attribute_report)
 from mobly import asserts
 
-
 '''
 Category:
 Functional