code: def pairwise_distance(self, query_emb, ref_emb):
      return torch.nn.functional.pairwise_distance(
          query_emb, ref_emb, p=self.p
      )
  
file_path: pytorch-metric-learning/src/pytorch_metric_learning/distances/lp_distance.py
imports: import torch
  from ..utils import loss_and_miner_utils
  from .base_distance import BaseDistance
label_desc: Use image node_id 3 for calling the LpDistance obj's underlying member method code with example usage: obj.pairwise_distance(query_emb, ref_emb) and returns: torch