def values(self):
        return list(self.data.values())
default event handler for node
dataset/ETHPy150Open ioam/holoviews/holoviews/core/ndmapping.py/MultiDimensionalMapping.values--crossover with--dataset/ETHPy150Open selfsk/nodeset.core/src/nodeset/core/interfaces/nodes.py/INode.onEvent