text: const custom = require('./ViewPortHelpers/viewPortHelpers');
  
  module.exports.StickyTop = topOffset => custom.isInViewPortTop(topOffset);
  module.exports.StickyBottom = bottomOffset => custom.isInViewPortBottom(bottomOffset);
  module.exports.StickyTopAddClass = (topOffset, scrollOriginMarker, className) => custom.isInViewPortTopAddClass(topOffset, scrollOriginMarker, className);
  module.exports.StickyBottomAddClass = (bottomOffset, scrollOriginMarker, className) => custom.isInViewPortBottomAddClass(bottomOffset, scrollOriginMarker, className);
  
  