misuzu/assets/misuzu.js/embed/image.js

const MszImageEmbed = function(metadata, options, target) {
    options = options || {};

    const element = $element('img', {
        alt: target.dataset.mszEmbedAlt || '',
        src: metadata.url,
    });

    const pub = {
        get element() { return element; },
        appendTo: function(target) {
            target.appendChild(element);
        },
        insertBefore: function(ref) {
            $insertBefore(ref, element);
        },
        nuke: function() {
            element.remove();
        },
        replaceElement(target) {
            $insertBefore(target, element);
            target.remove();
        },
        getType: function() { return 'external'; },
    };

    return pub;
};