run black

src/python/grpcio_tests/tests/unit/_api_test.py

@@ -117,21 +117,28 @@ def compute_engine_channel_credentials(request):
     class TestCallCredentials(grpc.AuthMetadataPlugin):
         def __call__(self, context, callback):
             callback((), None)
+
     test_call_credentials = TestCallCredentials()
     call_credentials = grpc.metadata_call_credentials(
         test_call_credentials, "test call credentials"
     )
-    request.cls.compute_engine_channel_credentials = grpc.compute_engine_channel_credentials(call_credentials)
+    request.cls.compute_engine_channel_credentials = (
+        grpc.compute_engine_channel_credentials(call_credentials)
+    )
 
 
 @pytest.mark.usefixtures("compute_engine_channel_credentials")
 class ChannelTest(unittest.TestCase):
     def test_ssl_secure_channel(self):
-        channel = grpc.secure_channel("google.com:443", grpc.ssl_channel_credentials())
+        channel = grpc.secure_channel(
+            "google.com:443", grpc.ssl_channel_credentials()
+        )
         channel.close()
 
     def test_compute_engine_secure_channel(self):
-        channel = grpc.secure_channel("google.com:443", self.compute_engine_channel_credentials)
+        channel = grpc.secure_channel(
+            "google.com:443", self.compute_engine_channel_credentials
+        )
         channel.close()
 
     def test_multiple_ssl_secure_channel(self):
@@ -141,7 +148,9 @@ class ChannelTest(unittest.TestCase):
         def create_secure_channel():
             wait_group.done()
             wait_group.wait()
-            channel = grpc.secure_channel("google.com:443", grpc.ssl_channel_credentials())
+            channel = grpc.secure_channel(
+                "google.com:443", grpc.ssl_channel_credentials()
+            )
             channel.close()
 
         threads = []
@@ -161,7 +170,9 @@ class ChannelTest(unittest.TestCase):
         def create_secure_channel():
             wait_group.done()
             wait_group.wait()
-            channel = grpc.secure_channel("google.com:443", self.compute_engine_channel_credentials)
+            channel = grpc.secure_channel(
+                "google.com:443", self.compute_engine_channel_credentials
+            )
             channel.close()
 
         threads = []