Examples of local-host-entries or hosts-service-type?

[Sergiu Ivanov <sivanov@colimite.fr>]

Hello Guix,

I am reconfiguring my system right now, and guix system reconfigure
/etc/config.scm tells me this:

/etc/config.scm:126:27: warning: 'local-host-aliases' is deprecated, use 'local-host-entries' instead
/etc/config.scm:126:27: warning: 'local-host-aliases' is deprecated, use 'local-host-entries' instead
/etc/config.scm:124:14: warning: the 'hosts-file' field is deprecated, please use 'hosts-service-type' instead

For the record, here are the lines guix system reconfigure is
complaining about:

(hosts-file (plain-file "hosts"
			(string-append
			 (local-host-aliases host-name)
			 "some.ip.address.1 machine1\n"
			 "some.other.ip.address machine2\n")))

I spent quite some time trying to find some examples of using
local-host-entries or hosts-service-type, but I don't seem to find any
mention of these.  Quite on the contrary, the Guix manual actually seems
to advice declarations similar to those which I have in my
/etc/config.scm.

Could someone point me to an example of how I should update
my configuration?

-
Sergiu