Fix restyle

src/python_testing/TC_IDM_4_2.py

@@ -26,7 +26,7 @@
 from chip.clusters.Attribute import AttributePath, TypedAttributePath
 from chip.exceptions import ChipStackError
 from chip.interaction_model import Status
-from matter_testing_support import (MatterBaseTest, AttributeChangeCallback, async_test_body, default_matter_test_main,
+from matter_testing_support import (AttributeChangeCallback, MatterBaseTest, async_test_body, default_matter_test_main,
                                     wait_for_attribute_report)
 from mobly import asserts
 
@@ -46,6 +46,7 @@
 https://github.com/CHIP-Specifications/chip-test-plans/blob/master/src/interactiondatamodel.adoc#tc-idm-4-2-subscription-response-messages-from-dut-test-cases-dut_server
 '''
 
+
 class TC_IDM_4_2(MatterBaseTest):
 
     ROOT_NODE_ENDPOINT_ID = 0