docstr: Include `prefix` in all future logging statements.
docstr_tok: ["Include","`","prefix","`","in","all","future","logging","statements","."]
code: def add_format_prefix(self, prefix):
      """
      Include `prefix` in all future logging statements.
      """
      # change both handler formatters to add a prefix
      self.prefix = prefix
      self.streamHandler.setFormatter(self._build_formatter())
  
imports: import os
  import sys
  import logging
  from logging import getLogger
label_desc: Use image node_id 5 for calling the ParlaiLogger obj's underlying member method code with example usage: obj.add_format_prefix(prefix) without return types