i unable find any doc from web site to create vm from snapshot via ovirt-shell (ovirt 4.0) , any help on this.

i mange to create vm from snapshot via webui

i would like to perform backup vm via api by using ovirt-shell. i have totally no knowledge on python

ideal as below:

create snapshot

#add snapshot --parent-vm-name "rhel6.8_server02" --description 'my snapshot'

create vm from snapshot

## missing, need help

del snapshot
# remove snapshot "597e550e-1285-46a0-86a3-6170791bc72d" --parent-vm-name "rhel6.8_server02"

export vm to export domain

## missing , need help

del vm

# remove vm --parent-vm-name "rhel6.8_server02-snapshot"