code: def test_fio_ls_vfs(path_coutwildrnp_zip):
      runner = CliRunner()
      result = runner.invoke(
          main_group, ["ls", f"zip://{path_coutwildrnp_zip}"]
      )
      assert result.exit_code == 0
      loaded = json.loads(result.output)
      assert len(loaded) == 1
      assert loaded[0] == "coutwildrnp"
  
file_path: Fiona/tests/test_fio_ls.py
imports: import json
  import sys
  import os
  from click.testing import CliRunner
  import pytest
  import fiona
  from fiona.fio.main import main_group
label_desc: Use image node_id 4 for calling a global function with example usage: test_fio_ls_vfs(path_coutwildrnp_zip) without return types