gitbook/lib/modifiers/summary/index.js

module.exports = {
    insertArticle:      require('./insertArticle'),
    moveArticle:        require('./moveArticle'),
    moveArticleAfter:   require('./moveArticleAfter'),
    removeArticle:      require('./removeArticle'),
    unshiftArticle:     require('./unshiftArticle'),
    editArticleTitle:   require('./editArticleTitle'),
    editArticleRef:     require('./editArticleRef'),

    insertPart:         require('./insertPart'),
    removePart:         require('./removePart'),
    editPartTitle:      require('./editPartTitle')
};