ansible/test/integration/targets/callback_default/test_yaml.yml

- hosts: testhost
  gather_facts: false
  tasks:
    - name: Sample task name
      debug:
        msg: sample debug msg

    - name: Umlaut output
      debug:
        msg: "äöü\néêè\nßï☺"

    - name: Test to_yaml
      debug:
        msg: "{{ data | to_yaml }}"
      vars:
        data: |
          line 1
          line 2
          line 3