ansible-edda/plays/system/roles/base/meta/argument_specs.yml

argument_specs:
  main:
    options:
      ansible_hostname:
        type: "str"
        required: true
      ansible_port:
        type: "int"
        required: true
      ssh_user:
        type: "str"
        required: true
      system_base_additional_ssh_users:
        type: "list"
        elements: "str"
        required: true
      system_base_additional_tcp_ports:
        type: "list"
        elements: "int"
        required: true
      system_base_udp_ports:
        type: "list"
        elements: "int"
        required: true
      system_base_fail2ban_ignoreip:
        type: "str"
        required: true
      system_base_motd_dir:
        type: "str"
        required: false