Emit data from/to pipeline workers?

Is it possible to transfer data during pipeline worker running?

For example, if I create a worker with polydata input (can be done using String type + XMLPolyDataWriter), and can emit mouse position data on mouse click event, I can use a c++ cellpicker ( intersection using OBBTree), which works faster than a vtk.js's picker.

Is it possible to do such a thing using itk.js's `runPipelineWorker` ?