rotateTowards How to use?

I am trying to use the rotateTowards function.. I think its the same function with moveTowards but I cant get it to work due to the errors. Here is my code

// -----JS CODE-----

//@input SceneObject Obj1

//@input SceneObject Obj2

var x = script.Obj1;

var y = script.Obj2;

var xtr = x.getTransform().getWorldPosition();

var ytr = y.getTransform().getWorldPosition();

var xrot = x.getTransform().getWorldRotation();

var yrot = y.getTransform().getWorldRotation();

var xtransform = x.getTransform().getWorldTransform();

var ytransform = y.getTransform().getWorldTransform();

var value = xtr.moveTowards(ytr,1);

var rot = xrot.rotateTowards(yrot,1);

var newtransform = x.getTransform().setWorldPosition(value);

var newrotation = x.getTransform().setWorldRotation(rot);

Reference:
https://lensstudio.snapchat.com/api/classes/vec3/#rotatetowardsvec3-point-number-amount-vec3

Thank you for the response