code: def refresh_cache(self):
      self._cache = list(np.random.normal(size=self._cache_size))
  
file_path: imodels/imodels/experimental/bartpy/samplers/scalar.py
imports: from typing import Any, List
  import numpy
label_desc: Use image node_id 3 for calling the NormalScalarSampler obj's underlying member method code with example usage: obj.refresh_cache() without return types