def METHOD_NAME(self):
    """Begin listening for output from the stenotype machine."""
    self._initializing()
    try:
        self._keyboard_capture = KeyboardCapture()
        self._keyboard_capture.key_down = self._key_down
        self._keyboard_capture.key_up = self._key_up
        self._keyboard_capture.start()
        self._update_suppression()
    except:
        self._error()
        raise
    self._ready()