gitbook/lib/output/modifiers/index.js

module.exports = {
    modifyHTML:         require('./modifyHTML'),
    inlineAssets:       require('./inlineAssets'),

    // HTML transformations
    addHeadingId:       require('./addHeadingId'),
    svgToImg:           require('./svgToImg'),
    fetchRemoteImages:  require('./fetchRemoteImages'),
    svgToPng:           require('./svgToPng'),
    resolveLinks:       require('./resolveLinks'),
    annotateText:       require('./annotateText')
};