code: def clear_cache(self):
      for name in self._cached_properties:
          try:
              delattr(self, name)
          except AttributeError:
              pass
  
imports: import collections
  import functools
  import io
  import os
  import warnings
  import dgl
  import numpy
  import scipy
  import torch
label_desc: Use image node_id 10 for calling the _Dirichlet obj's underlying member method code with example usage: obj.clear_cache() without return types