[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

tests/trainer/loops/test_training_loop_flow_dict.py

@@ -116,7 +116,7 @@ def training_epoch_end(self, outputs):
 
             # verify we saw the current num of batches
             assert len(outputs) == 2
-            assert len(set(id(output) for output in outputs)) == 2
+            assert len({id(output) for output in outputs}) == 2
             assert [output["batch_idx"] for output in outputs] == [0, 1]
 
             for b in outputs:
@@ -171,7 +171,7 @@ def training_epoch_end(self, outputs):
 
             # verify we saw the current num of batches
             assert len(outputs) == 2
-            assert len(set(id(output) for output in outputs)) == 2
+            assert len({id(output) for output in outputs}) == 2
             assert [output["batch_idx"] for output in outputs] == [0, 1]
 
             for b in outputs: