code: def now_ts():
      return datetime.now().strftime("%Y%m%d-%H%M%S")
  
file_path: ray/python/ray/autoscaler/_private/vsphere/utils.py
imports: import ipaddress
  import time
  from datetime import datetime
  from enum import Enum
label_desc: Use image node_id 3 for calling a global function with example usage: now_ts() and returns: datetime