posts
  - &alices_first_post
    title: "FIRST"

@schema user_schema

users
  - &alice
    name: Alice
    roles:
      - *sysadm_role
      - &user_role
        name: User
    posts:
      - *alices_first_post
      - title: "SECOND"
  - &bob
    name: Bob
    roles:
      - *admin_role
      - *user_role