docstr: Get statistics of taking snapshots
  
  After or during training, checkpointer holds statistics on
  saving checkpoints such as average time, minimum and maximum
  time. With this stats users may identify slow nodes or disk,
  or know average time penalty of taking snapshot and optmize
  interval to take snapshots.
docstr_tok: ["Get","statistics","of","taking","snapshots","After","or","during","training",",","checkpointer","holds","statistics","on","saving","checkpoints","such","as","average","time",",","minimum","and","maximum","time",".","With","this","stats","users","may","identify","slow","nodes","or","disk",",","or","know","average","time","penalty","of","taking","snapshot","and","optmize","interval","to","take","snapshots","."]
code: def get_stats(self):
      """Get statistics of taking snapshots
  
      After or during training, checkpointer holds statistics on
      saving checkpoints such as average time, minimum and maximum
      time. With this stats users may identify slow nodes or disk,
      or know average time penalty of taking snapshot and optmize
      interval to take snapshots.
  
      """
      return self.stats.report()
  
imports: import errno
  import os
  import shutil
  import tempfile
  import time
  import warnings
  import chainer
  from chainer.training import extension
label_desc: Use image node_id 5 for calling the _MultiNodeCheckpointer obj's underlying member method code with example usage: obj.get_stats() and returns: self