code: def read_data(self, path):
      with open(path, "r") as f:
          for line in f:
              self.values.append(float(line.strip("\n")))
          self._len = len(self.values)
  
imports: import torch
  from fairseq import data
label_desc: Use image node_id 2 for calling the IndexedWeightsDataset obj's underlying member method code with example usage: obj.read_data(path) without return types