this is maybe not possible, bokeh is not fully bidirectional (?), but is there a way to perform a software trigger from python side to trigger the js callback ?
For instance with a Toggle, the python callback is called but not the js callback:
bb = Toggle()
def bb_cb(attr,old,new): print(‘bb cb called’,attr,old,new)
I tried also update & trigger methods on bb. Not really knowing what i’m doing…no success