multiple variables within a smart class parameter in foreman

Hi all! So im trying to figure out how to manage sssd via foreman/puppet.

I can do single values for each smart class parameters, but where im struggling is specifically multiple values within the smart class parameters. For example, the nwaller/sssd puppet module calls a domain class specifically which wants several variables, but I cant seem to put the parameters in a format that it wants. I think if I just had an example to reverse engineer, I would do fine