def role_vars(host):
    """Loading standard role variables."""
    defaults_files = "file=./defaults/main.yml name=role_defaults"
    vars_files = "file=./vars/main.yml name=role_vars"

    ansible_vars = host.ansible("include_vars", defaults_files)["ansible_facts"]["role_defaults"]
    ansible_vars.update(
        host.ansible("include_vars", vars_files)["ansible_facts"]["role_vars"]
    )
    return ansible_vars