code: def iso_date(input_datetime: datetime.datetime) -> str:
      return f"{input_datetime:%Y-%m-%dT%H:%M:%S}Z"
  
file_path: airflow/tests/providers/amazon/aws/utils/eks_test_utils.py
imports: from __future__ import annotations
  import re
  from copy import deepcopy
  from typing import TYPE_CHECKING, Pattern, Type, Union
  from ..utils.eks_test_constants import STATUS, ClusterAttributes, ClusterInputs, FargateProfileAttributes, FargateProfileInputs, NodegroupAttributes, NodegroupInputs, ResponseAttributes
label_desc: Use image node_id 9 for calling a global function with example usage: iso_date(input_datetime) and returns: input_datetime, str