root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-ids 
error: no relation name specified
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-id network
relation-id: command not found
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-ids network
network:19
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-get -r network:19
error: no unit id specified
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-get -r network:19 mtu
error: no unit id specified
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-get -r network:19 private-address
error: no unit id specified
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-set -r 19 foo-bar
error: expected "key=value", got "foo-bar"
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-set -r 19 foo=bar
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-get -r 19
error: no unit id specified
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-get -r 19 private-address
error: no unit id specified
root@juju-lazyp-canonistack-machine-9:/var/lib/juju/agents/unit-docker-0/charm# relation-get private-address -r 19
error: no unit id specified