def get(self, id=None, **kwargs):
        """
        https://docs.cachethq.io/docs/get-metrics
        https://docs.cachethq.io/docs/get-a-metric
        """
        if id is not None:
            return self._get('metrics/%s' % id, data=kwargs)
        else:
            return self._get('metrics', data=kwargs)
https://docs.cachethq.io/docs/get-metrics
        https://docs.cachethq.io/docs/get-a-metric