code: def generate_uid():
      t = b64encode(str(time.time()).encode("utf-8"))
      r = b64encode(str(uuid4()).encode("utf-8"))
      return hashlib.sha256(t + r).hexdigest()
  
imports: import hashlib
  import time
  from uuid import uuid4
  from base64 import b64encode
label_desc: Use image node_id 1 for calling a global function with example usage: generate_uid() and returns: hashlib