pub fn get(value: MutableReference(a)) -> a

pub fn is_same_reference(
  left: MutableReference(a),
  right: MutableReference(a),
) -> Bool

pub fn new(value: a) -> MutableReference(a)

pub fn set(value: MutableReference(a), b: a) -> a

pub fn update(ref: MutableReference(a), f: fn(a) -> a) -> a