How to use the arsenic.constants.WEB_ELEMENT function in arsenic

finger1.move_to(ELEMENT_ONE) & finger2.move_to(ELEMENT_TWO),
        finger1.down() & finger2.down(),
        finger2.move_to(ELEMENT_TRI),
        finger1.up() & finger2.up(),
    )
    devices = list(sorted(actions["actions"], key=itemgetter("id")))
    assert devices == [
        {
            "parameters": {"pointerType": "touch"},
            "id": "pointer1",
            "type": "pointer",
            "actions": [
                {
                    "type": "pointerMove",
                    "duration": 250,
                    "origin": {constants.WEB_ELEMENT: "1"},
                    "x": 0,
                    "y": 0,
                },
                {"type": "pointerDown", "duration": 0, "button": 0},
                # create implicitly
                {"type": "pause", "duration": 0},
                {"type": "pointerUp", "duration": 0, "button": 0},
            ],
        },
        {
            "parameters": {"pointerType": "touch"},
            "id": "pointer2",
            "type": "pointer",
            "actions": [
                {
                    "type": "pointerMove",

def move_to(self, element: Element, duration: int=250) -> Tick:
        return self._tick(
            type='pointerMove',
            duration=duration,
            origin={constants.WEB_ELEMENT: element.id},
            x=0,
            y=0,
        )

def unwrap(value):
    if isinstance(value, dict) and (
            'ELEMENT' in value or constants.WEB_ELEMENT in value):
        wrapped_id = value.get('ELEMENT', None)
        if wrapped_id:
            return value['ELEMENT']
        else:
            return value[constants.WEB_ELEMENT]

    elif isinstance(value, list):
        return list(unwrap(item) for item in value)
    else:
        return value

def _pointer_move(device, action):
    del action["duration"]
    url = "/moveto" if device["parameters"]["pointerType"] == "mouse" else "/touch/move"
    origin = action["origin"]
    if origin == "pointer":
        data = {"xoffset": action["x"], "yoffset": action["y"]}
    elif constants.WEB_ELEMENT in origin:
        data = {"element": origin[constants.WEB_ELEMENT]}
    else:
        raise OperationNotSupported(f"Cannot move using origin {origin}")
    return url, "POST", data