stat.checksum return value missing in ansible 2.2 - ansible

Question

I am trying to find the checksum of a file in a playbook using the stat module.
---
- name: loading checksum to variable
stat:
path: /data/foo.256
checksum_algorithm: sha256
register: origin
- debug:
msg: "The checksum of the file is {{ origin.stat.checksum }}"
The error I get when I run the playbook is
fatal: [localhost]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'dict object' has no attribute 'checksum'\n\nThe error appears to have been in '/data/playbooks/roles/test/tasks/main.yml': line 8, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n - debug:\n ^ here\n"}
I tried to get some more verbosity using -vvv to the play and i noticed that there is no checksum in the return values of the module.
ok: [localhost] => {
"changed": false,
"invocation": {
"module_args": {
"checksum_algorithm": "sha256",
"follow": false,
"get_checksum": true,
"get_md5": true,
"mime": false,
"path": "/data/foo.256"
},
"module_name": "stat"
},
"stat": {
"atime": 1505250191.0,
"ctime": 1505250179.0,
"dev": 2057,
"executable": true,
"exists": true,
"gid": 0,
"gr_name": "root",
"inode": 5945,
"isblk": false,
"ischr": false,
"isdir": true,
"isfifo": false,
"isgid": false,
"islnk": false,
"isreg": false,
"issock": false,
"isuid": false,
"mode": "0755",
"mtime": 1505250179.0,
"nlink": 2,
"path": "/data/foo.256",
"pw_name": "root",
"readable": true,
"rgrp": true,
"roth": true,
"rusr": true,
"size": 4096,
"uid": 0,
"wgrp": false,
"woth": false,
"writeable": true,
"wusr": true,
"xgrp": true,
"xoth": true,
"xusr": true
}
}
So, I re-ran the play using one of the return values displayed and the play seems to work successfully.
The version of ansible I am using is 2.2.0.0
ansible 2.2.0.0
config file = /etc/ansible/ansible.cfg
configured module search path = Default w/o overrides
What am i missing here?

Answer 1

I see "isdir": true. Checksum is not displayed for directories.