docs: function Embeds(el, options) {
          this.el = el;
          this.$el = $(el);
          this.templates = window.MediumInsert.Templates;
          this.core = this.$el.data('plugin_' + pluginName);
  
          this.options = $.extend(true, {}, defaults, options);
  
          this._defaults = defaults;
          this._name = pluginName;
  
          // Extend editor's functions
          if (this.core.getEditor()) {
              this.core.getEditor()._serializePreEmbeds = this.core.getEditor().serialize;
              this.core.getEditor().serialize = this.editorSerialize;
          }
  
          this.init();
      }