docs: function onCreating(model, attrs, options) {
              if (!model.get('author_id')) {
                  if (model.get('authors')) {
                      model.set('author_id', model.get('authors')[0].id);
                  } else {
                      model.set('author_id', this.contextUser(options));
                  }
              }
  
              if (!model.get('authors')) {
                  model.set('authors', [{
                      id: model.get('author_id')
                  }]);
              }
  
              return this._handleOptions('onCreating')(model, attrs, options);
          }