It seems it was accidentaly remove (https://github.com/theforeman/foreman/commit/43c4bd72e4646cc9b2b4cb0533e84e08825eadda#diff-2d53894341fd1cf84a823e3bd0855495L62), I'll re-add that

actually it was not removed accidentally, the method was removed. Stephen, what version of Foreman do you use and what version of kickstart_networking_setup? Do you see this in your snippet? https://github.com/theforeman/community-templates/blob/master/snippets/kickstart_networking_setup.erb#L12

could you please update this when you sync it?

Synced, thanks!