docs: function (token, context, chain) {
  
  			var i ,
  				len ,
  				files = [] ,
  				output = '' ,
  				viewData = Object.create(context) ,
  				env = container.getParameter('kernel.environment') ,
  				data = container.get('assets.template.helper.assets')
  								.assets(token.files[0], token.files[1], token.files[2], false);
  
  			if (env === 'development') {
  
  				// dev environments print all of the files one-by-one
  				data.files.forEach(function(file) {
  					files.push(file + '?' + data.versionParameter + '=' + data.version);
  				});
  
  			} else {
  
  				// prod or test print the combined file only
  				files = [data.combinedFile];
  
  			}
  
  			// render the output one file at a time, respectively injecting URL into each
  			for (i = 0, len = files.length; i < len; i++) {
  				viewData.url = files[i];
  				output += Twig.parse.apply(this, [token.output, viewData]);
  			}
  
  			return {
  				chain: chain,
  				output: output
  			};
  		}