7.1 support for List

[will martin]

This use case is defined by the following snippet from the Design section
of the doc pages.

class Producer {

public void send (ProducerData)

public void send (List<ProducerData>)

public void close()
}

I've tried various composites for the List<ProducerData> argument,
including strings and Messages. All of these throw serialization errors
deep in the engine.

Is the list form of send supported in 7.1?

Thanks in advance,
mmartin