docstr: reset info after each epoch.
docstr_tok: ["reset","info","after","each","epoch","."]
code: def reset_info(self):
      """
      reset info after each epoch.
      """
      self.true_positives = {
          cur_class: [] for cur_class in range(self.num_classes)
      }
      self.false_positives = {
          cur_class: [] for cur_class in range(self.num_classes)
      }
      self.false_negatives = {
          cur_class: [] for cur_class in range(self.num_classes)
      }
  
file_path: dgl/examples/pytorch/evolveGCN/utils.py
label_desc: Use image node_id 2 for calling the Measure obj's underlying member method code with example usage: obj.reset_info() without return types