code: def _parse_filename(self, filename):
      tpl = filename.split(".")
      if len(tpl) != 3:
          return
      name, rank, iter = tpl
      if name != self.name:
          return
      return name, int(rank), int(iter)
  
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 10 for calling the _MultiNodeCheckpointer obj's underlying member method code with example usage: obj._parse_filename(filename) and returns: name,  int,  int