code: def operate_on_emb(
      self, input_func, query_emb, ref_emb=None, *args, **kwargs
  ):
      if ref_emb is None:
          ref_emb = query_emb
      return input_func(query_emb, ref_emb, *args, **kwargs)
  
imports: import numpy
  import torch
  from ..distances import BatchedDistance, CosineSimilarity
  from .None import common_functions
label_desc: Use image node_id 2 for calling the MatchFinder obj's underlying member method code with example usage: obj.operate_on_emb(input_func, query_emb, ref_emb) and returns: input_func