How to put AWS Network Load Balancer Elastic IPs in R53 A record

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We have a k8s service of type load balancer that creates an AWS network load balancer and assigns 2 elastic IPs to it.
These are the relevant annotations:

service.beta.kubernetes.io/aws-load-balancer-eip-allocations: eipalloc-*****************,eipalloc-*********************
external-dns.alpha.kubernetes.io/hostname: mytest.example.com

The A record that ExternalDNS creates contains something like:

test-nlb-***********************.elb.us-east-1.amazonaws.com

We want the A record to contain the 2 elastic IPs instead. How do we make that happen?

Thank you.