How to use the ember-keyboard/utils/get-code function in ember-keyboard

function gatherKeys(event) {
  const key = getCode(event);
  const mouseButton = getMouseName(event.button);
  const primaryEvent = [];

  if (isPresent(key)) primaryEvent.push(key);
  if (isPresent(mouseButton)) primaryEvent.push(mouseButton)

  return ['alt', 'ctrl', 'meta', 'shift'].reduce((keys, keyName) => {
    if (event[`${keyName}Key`]) {
      keys.push(keyName);
    }

    return keys;
  }, primaryEvent);
}