code: def load_pca(pca_out_fname):
      pca = load_file(pca_out_fname)
      return pca
  
file_path: vissl/vissl/utils/pca.py
imports: import logging
  from typing import Union
  import numpy
  import torch
  from vissl.utils.io import load_file, save_file
label_desc: Use image node_id 1 for calling a global function with example usage: load_pca(pca_out_fname) and returns: pca