Remove a given block from wantlist.

        Parameters
        ----------
        key : str
            Key to remove from wantlist.

def bitswap_unwant(self, key, **kwargs):
        """
        Remove a given block from wantlist.

        Parameters
        ----------
        key : str
            Key to remove from wantlist.
        """
        args = (key,)
        return self._client.request('/bitswap/unwant', args, **kwargs)