code: def parse_rfc3339(s: str) -> datetime.datetime:
      """
      Parse a string in the RFC3339 format we use.
      """
      return datetime.datetime.strptime(s, "%Y-%m-%dT%H:%M:%S.%fZ")
  
label_desc: Use image node_id 2 for calling a global function with example usage: parse_rfc3339(s) and returns: datetime