|  | @@ -104,7 +104,7 @@ def _server(credentials: Optional[grpc.ServerCredentials]):
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				|  |  |              port = server.add_secure_port(target, credentials)
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				|  |  |          server.add_generic_rpc_handlers((_GenericHandler(),))
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				|  |  |          server.start()
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				|  |  | -        yield server, port
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				|  |  | +        yield port
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				|  |  |      finally:
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				|  |  |          server.stop(None)
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				|  |  |  
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				|  | @@ -154,7 +154,7 @@ class SimpleStubsTest(unittest.TestCase):
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				|  |  |              self.fail(message() + " after " + str(timeout))
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				|  |  |  
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				|  |  |      def test_unary_unary_insecure(self):
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				|  |  | -        with _server(None) as (_, port):
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				|  |  | +        with _server(None) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              response = grpc.experimental.unary_unary(
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				|  |  |                  _REQUEST,
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				|  | @@ -165,7 +165,7 @@ class SimpleStubsTest(unittest.TestCase):
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				|  |  |              self.assertEqual(_REQUEST, response)
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				|  |  |  
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				|  |  |      def test_unary_unary_secure(self):
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				|  |  | -        with _server(grpc.local_server_credentials()) as (_, port):
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				|  |  | +        with _server(grpc.local_server_credentials()) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              response = grpc.experimental.unary_unary(
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				|  |  |                  _REQUEST,
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				|  | @@ -175,14 +175,14 @@ class SimpleStubsTest(unittest.TestCase):
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				|  |  |              self.assertEqual(_REQUEST, response)
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				|  |  |  
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				|  |  |      def test_channel_credentials_default(self):
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				|  |  | -        with _server(grpc.local_server_credentials()) as (_, port):
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				|  |  | +        with _server(grpc.local_server_credentials()) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              response = grpc.experimental.unary_unary(_REQUEST, target,
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				|  |  |                                                       _UNARY_UNARY)
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				|  |  |              self.assertEqual(_REQUEST, response)
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				|  |  |  
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				|  |  |      def test_channels_cached(self):
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				|  |  | -        with _server(grpc.local_server_credentials()) as (_, port):
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				|  |  | +        with _server(grpc.local_server_credentials()) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              test_name = inspect.stack()[0][3]
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				|  |  |              args = (_REQUEST, target, _UNARY_UNARY)
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				|  | @@ -196,7 +196,7 @@ class SimpleStubsTest(unittest.TestCase):
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				|  |  |              self.assert_cached(_invoke)
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				|  |  |  
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				|  |  |      def test_channels_evicted(self):
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				|  |  | -        with _server(grpc.local_server_credentials()) as (_, port):
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				|  |  | +        with _server(grpc.local_server_credentials()) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              response = grpc.experimental.unary_unary(
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				|  |  |                  _REQUEST,
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				|  | @@ -211,7 +211,7 @@ class SimpleStubsTest(unittest.TestCase):
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				|  |  |              )
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				|  |  |  
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				|  |  |      def test_total_channels_enforced(self):
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				|  |  | -        with _server(grpc.local_server_credentials()) as (_, port):
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				|  |  | +        with _server(grpc.local_server_credentials()) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              for i in range(_STRESS_EPOCHS):
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				|  |  |                  # Ensure we get a new channel each time.
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				|  | @@ -231,7 +231,7 @@ class SimpleStubsTest(unittest.TestCase):
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				|  |  |                  )
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				|  |  |  
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				|  |  |      def test_unary_stream(self):
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				|  |  | -        with _server(grpc.local_server_credentials()) as (_, port):
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				|  |  | +        with _server(grpc.local_server_credentials()) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              for response in grpc.experimental.unary_stream(
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				|  |  |                      _REQUEST,
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				|  | @@ -246,7 +246,7 @@ class SimpleStubsTest(unittest.TestCase):
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				|  |  |              for _ in range(_CLIENT_REQUEST_COUNT):
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				|  |  |                  yield _REQUEST
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				|  |  |  
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				|  |  | -        with _server(grpc.local_server_credentials()) as (_, port):
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				|  |  | +        with _server(grpc.local_server_credentials()) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              response = grpc.experimental.stream_unary(
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				|  |  |                  request_iter(),
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				|  | @@ -261,7 +261,7 @@ class SimpleStubsTest(unittest.TestCase):
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				|  |  |              for _ in range(_CLIENT_REQUEST_COUNT):
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				|  |  |                  yield _REQUEST
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				|  |  |  
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				|  |  | -        with _server(grpc.local_server_credentials()) as (_, port):
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				|  |  | +        with _server(grpc.local_server_credentials()) as port:
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				|  |  |              target = f'localhost:{port}'
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				|  |  |              for response in grpc.experimental.stream_stream(
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				|  |  |                      request_iter(),
 |