code: function initialize(dest, declarations, name, cache, inited) {
          var decl = declarations[name];
          if (!inited[name]) {
              // Create unit dependencies first.
              var len = cache.dependencies[name].length;
              for (var i = 0; i < len; i++) {
                  initialize(dest, declarations,
                          cache.dependencies[name][i], cache, inited);
              }
              // Create unit.
              decl._init(dest, name);
              inited[name] = true;
          }
      }
docs: Create unit in namespace.