from pathlib import Path

def is_submodule(path):
    if path.is_file():
        return path.suffix == ".py" and path.stem != "__init__"
    elif path.is_dir():
        return (path / "__init__.py").exists()
    return False

__all__ = [p.stem for p in Path(__file__).parent.iterdir() if is_submodule(p)]

from .control_group import ControlGroup