'Returns the action details of the provided server.'

def show_instance_action(self, server_id, request_id):

    (resp, body) = self.get(('servers/%s/os-instance-actions/%s' % (server_id, request_id)))
    body = json.loads(body)
    self.validate_response(schema.show_instance_action, resp, body)
    return rest_client.ResponseBody(resp, body)
