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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 pubsub_peers(self, topic=None, **kwargs):
 """List the peers we are pubsubbing with. Lists the id's of other IPFS users who we are connected to via some topic. Without specifying a topic, IPFS peers from all subscribed topics will be returned in the data. If a topic is specified only the IPFS id's of the peers from the specified topic will be returned in the data. .. code-block:: python {'Strings': [ 'QmPbZ3SDgmTNEB1gNSE9DEf4xT8eag3AFn5uo7X39TbZM8', 'QmQKiXYzoFpiGZ93DaFBFDMDWDJCRjXDARu4wne2PRtSgA', 'QmepgFW7BHEtU4pZJdxaNiv75mKLLRQnPi1KaaXmQN4V1a' ] } ## with a topic # subscribe to a channel {'String': [ 'QmPbZ3SDgmTNEB1gNSE9DEf4xT8eag3AFn5uo7X39TbZM8', # other peers connected to the same channel ] } Parameters topic : str The topic to list connected peers of (defaults to None which lists peers for all topics) Returns ------- dict : Dictionary with the ke "Strings" who's value is id of IPFS peers we're pubsubbing with """

        args = (topic,) if topic is not None else ()
        return self._client.request('/pubsub/peers', args,
                                    decoder='json', **kwargs)