How to write query to get gnocchi information at grafana

[prcld]

I am using gnocchi version 7.0.1 with OpenStack Queens.
Can anyone send any sample query to get the information from grafana with gnocchi plugin server?
I mean what are the information, I have to write for the following fields:
Resource Type: instance
Query: What should I write here?
Operations: What should I write here?

Kindly write a sample query to get the cpu utilization of an instance.

[mrezabarkhordari]

see below link:
https://github.com/gnocchixyz/grafana-gnocchi-datasource#templated-queries