Source code for lpf2.button_state
"""Button states reported by LEGO hubs and remotes.
``PRESSED`` / ``RELEASED`` are for a hub's button; ``UP`` / ``DOWN`` /
``STOP`` are the + / - / red buttons on a Powered Up remote.
"""
"""Hub power button pressed."""
"""Hub power button released."""
"""Remote button: ``+`` (up)."""
"""Remote button: ``-`` (down)."""
"""Remote button: red (stop)."""