def get_plugin(self, name):
        return self._name2plugin.get(name)
A nested list of Cluster and Vector objects, 
dataset/ETHPy150Open pytest-dev/pytest/_pytest/vendored_packages/pluggy.py/PluginManager.get_plugin--crossover with--dataset/ETHPy150Open clips/pattern/pattern/vector/__init__.py/Cluster.__init__