hosted zone — private or public

How to know if a hosted zone is private or public?

aws route53 get-hosted-zone --id ABCDEFGHIJKLMNOPQRSTUVWXYZ
{
    "HostedZone": {
        "Id": "/hostedzone/ABCDEFGHIJKLMNOPQRSTUVWXYZ",
        "Name": "blah.tld.",
        "CallerReference": "terraform-*******************",
        "Config": {
            "Comment": "Managed by Terraform",
            "PrivateZone": false
        },
        "ResourceRecordSetCount": 322
    },
    "DelegationSet": {
        "NameServers": [
            "ns-blah.co.uk",
            "ns-more-blah.net",
            "ns-blah-blah-and-bla.org",
            "ns-few-more-blas.com"
        ]
    }
}

That line PrivateZone: false indicates that the hosted zone is public