How to assert if two eddsa.PublicKey are equal?

[drakstik]

type Circuit struct {
	PublicKey_in                eddsa.PublicKey       `gnark:",public"`
	PublicKey_out               eddsa.PublicKey       `gnark:",public"`
}

func (circuit *Circuit) Define(api frontend.API) error {
    api.AssertIsEqual(circuit.PublicKey_out, circuit.PublicKey_in)
}

This is giving me the error: eddsa.PublicKey to big.Int not supported

The error makes sense to me, however, I cant think of a way to assert if public keys are equal.

[ivokub]

eddsa.PublicKey is

type PublicKey struct {
	A twistededwards.Point
}

and

type twistededwards.Point struct {
    X, Y frontend.Variable
}

You need to verify the equality of points a la api.AssertIsEqual(key1.A.X, key2.A.X) etc