code: def test_dump_layer_vfs(path_coutwildrnp_zip):
      path = f"zip://{path_coutwildrnp_zip}"
      result = CliRunner().invoke(main_group, ["dump", path])
      assert result.exit_code == 0
      loaded = json.loads(result.output)
      with fiona.open(path) as src:
          assert len(loaded["features"]) == len(src)
          assert len(loaded["features"]) > 0
  
file_path: Fiona/tests/test_fio_dump.py
imports: import json
  from click.testing import CliRunner
  import pytest
  import fiona
  from fiona.fio.main import main_group
label_desc: Use image node_id 3 for calling a global function with example usage: test_dump_layer_vfs(path_coutwildrnp_zip) without return types