docs: def _list(self, path, dim_key=None, **kwargs):
          """Get a list of metrics."""
          url_str = self.base_url + path
          if dim_key and dim_key in kwargs:
              dim_str = self.get_dimensions_url_string(kwargs[dim_key])
              kwargs[dim_key] = dim_str
  
          if kwargs:
              url_str += '?%s' % parse.urlencode(kwargs, True)
  
          body = self.client.list(
              path=url_str
          )
  
          return self._parse_body(body)