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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 bitswap_wantlist(self, peer=None, **kwargs):
 """Returns blocks currently on the bitswap wantlist. .. code-block:: python {'Keys': [ 'QmeV6C6XVt1wf7V7as7Yak3mxPma8jzpqyhtRtCvpKcfBb', 'QmdCWFLDXqgdWQY9kVubbEHBbkieKd3uo7MtCm7nTZZE9K', 'QmVQ1XvYGF19X4eJqz1s7FJYJqAxFC4oqh3vWJJEXn66cp' ]} Parameters peer : str Peer to show wantlist for. Returns ------- dict : List of wanted blocks """

        args = (peer,)
        return self._client.request('/bitswap/wantlist', args,
                                    decoder='json', **kwargs)