code: def test_ensure_env_crs(path_coutwildrnp_shp):
      """Decoration of .crs works"""
      assert fiona.open(path_coutwildrnp_shp).crs
  
file_path: Fiona/tests/test_env.py
imports: import os
  import sys
  from unittest import mock
  import boto3
  import pytest
  import fiona
  from fiona import _env
  from fiona.env import getenv, hasenv, ensure_env, ensure_env_with_credentials
  from fiona.errors import FionaDeprecationWarning
  from fiona.session import AWSSession, GSSession
label_desc: Use image node_id 7 for calling a global function with example usage: test_ensure_env_crs(path_coutwildrnp_shp) without return types