code: def __init__(self, X, idx_store, num_docs):
      self.X = X
      self.idx_store = idx_store
      self.num_docs = num_docs
  
imports: import numpy
label_desc: Use image node_id 1 to create a new FeatureLister object from inherited base classes: object with example: obj = FeatureLister(X, idx_store, num_docs)