docstr: Resume logging to stdout.
docstr_tok: ["Resume","logging","to","stdout","."]
code: def unmute(self):
      """
      Resume logging to stdout.
      """
      self.streamHandler.level = self.prev_level
  
imports: import os
  import sys
  import logging
  from logging import getLogger
label_desc: Use image node_id 7 for calling the ParlaiLogger obj's underlying member method code with example usage: obj.unmute() without return types