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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 add_channel_info(self, attrs, clear=False):
 """ Add channel info data to the channel_id group. :param data: A dictionary of key/value pairs. Keys must be strings. Values can be strings or numeric values. :param clear: If set, any existing channel info data will be removed. """

        self.assert_writeable()
        if 'channel_id' not in self.handle:
            self.handle.create_group('channel_id')
        self._add_attributes('channel_id', attrs, clear)