old_contents: YUI().use('css-mediaquery', 'rework', 'rework-pure-grids', function (Y) {
      'use strict';
  
      var exported   = Y.Env._exported,
          rework     = Y.config.global.rework,
          pureGrids  = exported['rework-pure-grids'],
          mediaQuery = exported['css-mediaquery'];
  
      var css = rework('').use(pureGrids.units({
          mediaQueries: {
              med: 'screen and (min-width: 48em)',
              lrg: 'screen and (min-width: 75em)'
          }
      })).toString();
  
      console.log(mediaQuery.parse('screen and (min-width: 48em)'));
      console.log(css);
  });
  
new_contents: YUI().use('css-mediaquery', 'rework', 'rework-pure-grids', function (Y) {
      'use strict';
  
      var exported   = Y.Env._exported,
          rework     = Y.config.global.rework,
          pureGrids  = exported['rework-pure-grids'],
          mediaQuery = exported['css-mediaquery'];
  
      var css = rework('').use(pureGrids.units({
          mediaQueries: {
              med: 'screen and (min-width: 48em)',
              lrg: 'screen and (min-width: 75em)'
          }
      })).toString();
  
      console.log(mediaQuery.parse('screen and (min-width: 48em)'));
      console.log(css);
      console.log(app.start.query);
  });
  
subject: add a console.log() for easy viewing server payload