code: @Override
      public Object get(final String varName) {
          return runWithContext(new RhinoCallable<Object, RuntimeException>() {
              @Override
              protected Object doCall(Context cx, Scriptable scope) {
                  return unwrappedValue(scope.get(varName, scope));
              }
          });
      }
docs: /* (non-Javadoc)
  @see minium.script.rhinojs.JsEngine#get(java.lang.String)