code: def load(self, data_or_path):
      raise NotImplementedError(
          "You must implement load function so that Client can pass file-path to this "
          "class"
      )
  
file_path: FATE/python/fate/ml/nn/dataset/base.py
imports: from torch.utils.data import Dataset
  import abc
  import pandas
label_desc: Use image node_id 2 for calling the Dataset obj's underlying member method code with example usage: obj.load(data_or_path) without return types