'Return the details of a single volume.
For a full list of available parameters, please refer to the official
API reference:
https://developer.openstack.org/api-ref/compute/#show-volume-details'

def show_volume(self, volume_id):

    url = ('os-volumes/%s' % volume_id)
    (resp, body) = self.get(url)
    body = json.loads(body)
    self.validate_response(schema.create_get_volume, resp, body)
    return rest_client.ResponseBody(resp, body)
