This is how I am using module, na_ontap_snapmirror module working fine and all pre-requisites match
- name: Create SnapMirror policy
na_ontap_snapmirror_policy:
state: present
vserver: "SVM1"
policy_name: "ansible_policy"
policy_type: "mirror_vault"
comment: "created by ansible"
hostname: "abc"
username: "abc"
password: "abcj"
https: true
validate_certs: false
~