code: function(buffer, req, res, next) {
            var less = require("grunt-lib-less").init(grunt);
            var contentType = "text/css";
            var opts = {
              paths: ["." + req.url.split("/").slice(0, -1).join("/") + "/"]
            };
  
            // Compile the source.
            less.compile(String(buffer), opts, function(contents) {
              res.header("Content-type", contentType);
              res.end(contents);
            });
          }
docs: LESS.