text: from datetime import datetime
  
  DT_FORMAT = "%Y-%m-%dT%H:%M:%S.%f"
  
  
  def get_timestamp():
      """
      Serialize actual datetime provided as simplified ISO 8601 (without timezone)
      string
  
      :return: serialized datetime
      :rtype: str
      """
      return datetime.now().strftime(DT_FORMAT)
  