code: def compute_feature_importance(self) -> pd.DataFrame:
      raise NotImplementedError()
  
imports: from typing import List
  import pandas
  import torch.nn
  from reagent.core.dataclasses import dataclass
label_desc: Use image node_id 1 for calling the FeatureImportanceBase obj's underlying member method code with example usage: obj.compute_feature_importance() without return types