device-type.yml

---
- name: Set network device type
  hosts: all
  tasks:
  - ios_command: 
      commands: show version 
      provider: '{{cli}}'
    register: result
  - set_fact:
      ansible_os: "{{result.stdout[0]|device_type}}"
  - debug: msg="Device type for {{inventory_hostname}} set to {{ansible_os}}"