ansible - example of using include_vars to put vars under a specific key

00_play.yml

# play.yml
---
- hosts: localhost
  connection: local
  gather_facts: False
  roles:
    - test

01_main.yml

# roles/test/tasks/main.yml
---
- include_vars:
    file: subdir/bar
    name: foo

- debug:
    var: foo

02_bar

# roles/test/vars/subdir/bar
---
mysuperduperdict:
  key1:
    - abc
    - def

03_output

PLAY [localhost] ***************************************************************************************************************************************************************************************************************************************************************

TASK [test : include_vars] *****************************************************************************************************************************************************************************************************************************************************
ok: [localhost]

TASK [test : debug] ************************************************************************************************************************************************************************************************************************************************************
ok: [localhost] => {
    "changed": false,
    "foo": {
        "mysuperduperdict": {
            "key1": [
                "abc",
                "def"
            ]
        }
    }
}

PLAY RECAP *********************************************************************************************************************************************************************************************************************************************************************
localhost                  : ok=2    changed=0    unreachable=0    failed=0

04_version

$ ansible-playbook --version
ansible-playbook 2.3.0.0
  config file =
  configured module search path = Default w/o overrides
  python version = 2.7.13 (default, Dec 18 2016, 07:03:34) [GCC 4.2.1 Compatible Apple LLVM 7.0.2 (clang-700.1.81)]