ansible.utils/tests/integration/targets/utils_netaddr_test/tasks/reserved.yml

---
- name: "reserved: Check if 253.0.0.1 is a reserved IP address"
  ansible.builtin.assert:
    that: "{{ '253.0.0.1' is ansible.utils.reserved }}"

- name: "reserved: Test invalidness"
  ansible.builtin.set_fact:
    criteria_check: "{{ '128.146.1.7' is ansible.utils.reserved }}"

- name: "reserved: Assert invalidness"
  ansible.builtin.assert:
    that: "{{ criteria_check == false }}"