define keystone_user from openstack/puppet-keystone via hiera?

I am using https://github.com/openstack/puppet-keystone to set up an OpenStack management/controller node. I need to add the 'glance' user to keystone. I want to try and do as much as I can in my hiera data so my manifest will be simple.

Here is my manifest:

class kilo2_keystone {
    include controller_ceph
    include keystone
    include keystone::config
    include keystone::user
#    keystone_user { 'glance':
#        ensure => present,
#    }

}

The commented out section works, but I want to be able to do include keystone::user and supply the parameters in my hiera data like so:

keystone::user: 
   "%{hiera('glance_admin_user')}":
      ensure: present

But when I run puppet agent -t on my node I get this error:

Could not find class ::keystone::user