Not able to set limits via systemd class

[redcricket]

I want to setup some systemd limits for a service so I have included ...

    include ::systemd

... in my manifest. And I have this hiera data:

systemd::service_limits:
    'openstack-nova-compute.service':
        limits:
                LimitNOFILE: 32768

But when puppet on my node I get this error:

Error while evaluating a Function Call, Class[Systemd]: parameter 'service_limits' unrecognized key 'openstack-nova-compute.service' at ...

I have looked at the docs and they do not explain how to form the hash in hiera, they just give this example:

::systemd::service_limits { 'foo.service':
  limits => {
    'LimitNOFILE' => 8192,
    'LimitNPROC'  => 16384,
  }
}

So how would I do that in hiera/yaml?

[redcricket]

I have posted a question about this on stackoverflow

[ekohl]

The stackoverflow answer is right: it should be a different type. I think Hash[String, Hash[String, Any]] would make the most sense while changing the default to {}.