code: def configure(logdir, flush_secs=2):
      """Configure logging: a file will be written to logdir, and flushed
      every flush_secs.
      """
      global _default_logger
      if _default_logger is not None:
          raise ValueError("default logger already configured")
      _default_logger = Logger(logdir, flush_secs=flush_secs)
  
imports: from collections import defaultdict
  import os
  import re
  import socket
  import struct
  import time
  import numpy
  import six
  import scipy.misc
  from .crc32c import crc32c
label_desc: Use image node_id 4 for calling a global function with example usage: configure(logdir, flush_secs) without return types