keystone/docs/guide/src/docbkx/samples/password_rules.json

{
  "passwordRule": [
    {
      "id": 1,
      "name": "Mininum Legth",
      "message": "Password must be at least 7 characters long."
    },
    {
      "id": 2,
      "name": "Lowercase Character",
      "message": "Password must contain a lowercase character."
    }
  ]
}