How to use the liquid-fire.explode function in liquid-fire

export default function modalPopup(opts={}) {
  var [overlay, box] = explode(this, [
    '.lf-overlay',
    '.lm-container > div'
  ]);

  var overlayAnimation = animateOverlay;
  var overlayAnimationArgs = [];
  if (opts.overlay) {
    if (Ember.isArray(opts.overlay)) {
      overlayAnimation = this.lookup(opts.overlay[0]);
      overlayAnimationArgs = opts.overlay.slice(1);
    } else {
      overlayAnimation = this.lookup(opts.overlay);
    }
  }

  var boxAnimation = animateDialog;