code: def test_collection_no_crs_wkt(tmpdir, path_coutwildrnp_shp):
      """crs members of a dataset with no crs can be accessed safely."""
      filename = str(tmpdir.join("test.shp"))
      with fiona.open(path_coutwildrnp_shp) as src:
          profile = src.meta
      del profile["crs"]
      del profile["crs_wkt"]
      with fiona.open(filename, "w", **profile) as dst:
          assert dst.crs_wkt == ""
          assert dst.crs == fiona.crs.CRS()
  
file_path: Fiona/tests/test_collection_crs.py
imports: import os
  import re
  import pytest
  import fiona
  import fiona.crs
  from fiona.errors import CRSError
  from .conftest import WGS84PATTERN
label_desc: Use image node_id 2 for calling a global function with example usage: test_collection_no_crs_wkt(tmpdir, path_coutwildrnp_shp) without return types