class GrpcClientService {

    @GrpcClient("cloud-grpc-server")
    private SimpleGrpc.SimpleBlockingStub simpleStub;

    public String sendMessage(final String name) {<FILL_FUNCTION_BODY>}

}

        try {
            final HelloReply response = this.simpleStub.sayHello(HelloRequest.newBuilder().setName(name).build());
            return response.getMessage();
        } catch (final StatusRuntimeException e) {
            log.error("Request failed", e);
            return "FAILED with " + e.getStatus().getCode();
        }
    
<no_super_class>