code: def __call__(self, idx):
      return self.emb[idx]
  
imports: import os
  import numpy
  import mxnet
  from mxnet import gluon
  from mxnet import ndarray
  from .score_fun import *
  from ..None import *
label_desc: Use image node_id 4 for calling the InferEmbedding obj's underlying member method code with example usage: obj.__call__(idx) and returns: self