---
- name: Testing multiple plays in a playbook
  hosts: localhost
  tasks:
    - name: First block
      when: true
      block:
        - name: Display a message
          ansible.builtin.debug:
            msg: Hello world!

- name: A second play
  hosts: localhost
  tasks:
    - name: Second block
      block:
        - name: Display a message
          ansible.builtin.debug:
            msg: Hello world!
      when: true # <-- name key should be the second one