static Executable runWithStub(final Duration shutdownGracePeriod,
            final ThrowingConsumer<TestServiceFutureStub> executuable) {
        return () -> withStub(shutdownGracePeriod, executuable);
    }
Tests for {@link InProcessChannelFactory}'s shutdown behavior using an in-process server/channel.
tests/src/test/java/net/devh/boot/grpc/test/shutdown/GrpcChannelLifecycleWithCallsTest.java