code: def load(self, filename):
      self.index = faiss.read_index(filename)
  
imports: import numpy
  import torch
  from ..distances import BatchedDistance, CosineSimilarity
  from .None import common_functions
label_desc: Use image node_id 6 for calling the FaissKNN obj's underlying member method code with example usage: obj.load(filename) without return types