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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 async def close(self) -> bool: """Close the device."""

        _LOGGER.debug('%s: Sending close command', self.name)
        if not await self._set_state(0):
            return False

        # Do not allow update of this device's state for 10 seconds.
        self.next_allowed_update = datetime.utcnow() + timedelta(seconds=10)

        # Ensure state is closed or closing.
        if self.state not in (STATE_CLOSED, STATE_CLOSING):
            # Set state to closing.
            self._update_state('5')
            self._device_json = self._device['device_info']

        _LOGGER.debug('%s: Close command send', self.name)
        return True