code: def check_shapes(self, query_emb, ref_emb):
      pass
  
file_path: pytorch-metric-learning/tests/distances/test_custom_check_shape.py
imports: import unittest
  import torch
  from pytorch_metric_learning.distances import BaseDistance, LpDistance
  from pytorch_metric_learning.losses import TripletMarginLoss
label_desc: Use image node_id 2 for calling the CustomDistance obj's underlying member method code with example usage: obj.check_shapes(query_emb, ref_emb) without return types