ansible api 400

Hi, Trying to use Ansible to provision LXC containers on a single Proxmox HV. ansible-playbook 2.1.0.0 pve-manager/4.2-17/e1400248 (running kernel: 4.4.15-1-pve) This is using the Ansible module from the core extras module (http://docs.ansible.com/ansible/proxmox_module.html) Ansible snippet...