These methods were introduced into the spec to make ergonomics better for developers. We should implement them. Reference: https://w3c.github.io/webauthn/#dom-publickeycredential-tojson https://github.com/w3c/webauthn/pull/1703 diff: https://pr-preview.s3.amazonaws.com/w3c/webauthn/1703/dcd3190...12e5071.html
<rdar://problem/109419228>