code: def _start_magic(line):
      """Implementation of the `%tensorboard` line magic."""
      return start(line)
  
imports: import datetime
  import errno
  import html
  import json
  import os
  import random
  import shlex
  import textwrap
  import time
  from tensorboard import manager
label_desc: Use image node_id 5 for calling a global function with example usage: _start_magic(line) and returns: start