text: exports.gifsicle = require('./gifsicle');
  exports.gm = require('./gm');
  exports.inkscape = require('./inkscape');
  exports.jpegtran = require('./jpegtran');
  exports.metadata = require('./metadata');
  exports.optipng = require('./optipng');
  exports.pngcrush = require('./pngcrush');
  exports.pngquant = require('./pngquant');
  exports.sharp = require('./sharp');
  exports.svgfilter = require('./svgfilter');
  