code: def test_all_registered():
      """Make sure all the subcommands are actually registered to the main CLI
      group."""
      for ep in iter_entry_points("fiona.fio_commands"):
          assert ep.name in main_group.commands
  
file_path: Fiona/tests/test_fio_info.py
imports: import json
  from pkg_resources import iter_entry_points
  import re
  import sys
  from click.testing import CliRunner
  import pytest
  from fiona.fio.main import main_group
label_desc: Use image node_id 4 for calling a global function with example usage: test_all_registered() without return types