code: function(cb) {
              // Callback is optional
              cb = util.optional(cb);
  
              // Grab policies config & policy modules and trigger callback
              this.loadMiddleware(function (err) {
                  if (err) return cb(err);
  
                  sails.log.verbose('Finished loading policy middleware logic.');
                  cb();
              }.bind(this));
  
              // Before routing, curry controller functions with appropriate policy chains
              sails.on('router:before', this.bindPolicies);
          }
docs: Initialize is fired first thing when the hook is loaded
  
  @api public