chromium/chromeos/components/test/data/onc/shill_ikev2_psk.json

{ "GUID": "guid",
  "Type": "vpn",
  "Name": "MyIKEv2VPN",
  "Provider.Host": "some.host.org",
  "Provider.Type": "ikev2",
  "IKEv2.AuthenticationType": "PSK",
  "IKEv2.LocalIdentity": "local-id",
  "IKEv2.PSK": "some_preshared_key",
  "IKEv2.RemoteIdentity": "remote-id",
  "SaveCredentials": true
}