@GrpcGlobalClientInterceptor
        ConfigAnnotatedClientInterceptor configAnnotatedClientInterceptor() {
            return new ConfigAnnotatedClientInterceptor();
        }
Tests that {@link GrpcGlobalClientInterceptor}, {@link GlobalClientInterceptorConfigurer} and
{@link GlobalClientInterceptorRegistry} work as expected.
tests/src/test/java/net/devh/boot/grpc/test/interceptor/PickupClientInterceptorTest.java