code: def timestamp_seconds(ts):
      """Returns seconds float from value generated by `timestamp`."""
      return float(ts / 1000000)
  
imports: import os
  import random
  import threading
  import time
  import uuid
  import yaml
  from guild import opref
  from guild import util
  from guild import yaml_util
label_desc: Use image node_id 3 for calling a global function with example usage: timestamp_seconds(ts) and returns: float