openstack cinder client help

good afternoon, i am trying to use the openstackclient ( https://docs.openstack.org/newton/user-guide/common/cli-install-openstack-co...), but it seems than I cannot use it to see cinder volume snapshot, even the doc say it is possible ( https://docs.openstack.org/python-openstackclient/latest/cli/decoder.html#ci... ) [image: image.png] it says " (my-virt-env) user@ostack:~$ openstack snapshot list openstack: 'snapshot list' is not an openstack command. See 'openstack --help'. Did you mean one of these? endpoint add project endpoint create endpoint delete endpoint group add project endpoint group create ... " what am i missing? thank you.