return 0;
        }
        exists();
        return attributes & ATTR_GET_MASK;
    }

    /**
     * Set the attributes of this file. Attributes are composed into a
     * bitset by bitwise ORing the {@code ATTR_*} constants. Setting the
     * value returned by {@code getAttributes} will result in both files
     * having the same attributes.
     * @param attrs the attributes to set

transitionEndEmulator\n  $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent()\n}\n\n/**\n * Public Util API\n */\n\nconst Util = {\n  TRANSITION_END: 'bsTransitionEnd',\n\n  getUID(prefix) {\n    do {\n      // eslint-disable-next-line no-bitwise\n      prefix += ~~(Math.random() * MAX_UID) // \"~~\" acts like a faster Math.floor() here\n    } while (document.getElementById(prefix))\n\n    return prefix\n  },\n\n  getSelectorFromElement(element) {\n    let selector = element.getAttribute('data-target')\n\n...