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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:
 def snapshot(self):
 """Record and store the current state of a device. Returns: bool: `True` if the device is a coordinator, `False` otherwise. Useful for determining whether playing an alert on a device will ungroup it. """

        # get if device coordinator (or slave) True (or False)
        self.is_coordinator = self.device.is_coordinator

        # Get information about the currently playing media
        media_info = self.device.avTransport.GetMediaInfo([('InstanceID', 0)])
        self.media_uri = media_info['CurrentURI']
        # Extract source from media uri - below some media URI value examples:
        #  'x-rincon-queue:RINCON_000E5859E49601400#0'
        #       - playing a local queue always #0 for local queue)
        #
        #  'x-rincon-queue:RINCON_000E5859E49601400#6'
        #       - playing a cloud queue where #x changes with each queue)
        #
        #  -'x-rincon:RINCON_000E5859E49601400'
        #       - a slave player pointing to coordinator player

        if self.media_uri.split(':')[0] == 'x-rincon-queue':
            # The pylint error below is a false positive, see about removing it
            # in the future
            # pylint: disable=simplifiable-if-statement
            if self.media_uri.split('#')[1] == '0':
                # playing local queue
                self.is_playing_queue = True
            else:
                # playing cloud queue - started from Alexa
                self.is_playing_cloud_queue = True

        # Save the volume, mute and other sound settings
        self.volume = self.device.volume
        self.mute = self.device.mute
        self.bass = self.device.bass
        self.treble = self.device.treble
        self.loudness = self.device.loudness

        # get details required for what's playing:
        if self.is_playing_queue:
            # playing from queue - save repeat, random, cross fade, track, etc.
            self.play_mode = self.device.play_mode
            self.cross_fade = self.device.cross_fade

            # Get information about the currently playing track
            track_info = self.device.get_current_track_info()
            if track_info is not None:
                position = track_info['playlist_position']
                if position != "":
                    # save as integer
                    self.playlist_position = int(position)
                self.track_position = track_info['position']
        else:
            # playing from a stream - save media metadata
            self.media_metadata = media_info['CurrentURIMetaData']

        # Work out what the playing state is - if a coordinator
        if self.is_coordinator:
            transport_info = self.device.get_current_transport_info()
            if transport_info is not None:
                self.transport_state = transport_info[
                    'current_transport_state']

        # Save of the current queue if we need to
        self._save_queue()

        # return if device is a coordinator (helps usage)
        return self.is_coordinator