dist/famous-flex.js
function _initHideAnimation(item, prevItem, size) {
        var startHideAnimation = _startHideAnimation.bind(this, item, prevItem, size);
        if (item.wait) {
            item.wait.then(startHideAnimation, startHideAnimation);
        }
        else {
            startHideAnimation();
        }
    }
function _initHideAnimation(item, prevItem, size) {
        var startHideAnimation = _startHideAnimation.bind(this, item, prevItem, size);
        if (item.wait) {
            item.wait.then(startHideAnimation, startHideAnimation);
        }
        else {
            startHideAnimation();
        }
    }
Waits for the animation to start.