SE.NEW_GLOBALS
If SE.NO_INHERIT flag is used, this flag is also automatically used. When the flag is not used, any new variable created is stored in the global object of the parent and is still around after this script finishes executing. If this flag is included, a new global object is created for variables the script uses, and those variables go away when the script completes. Specifying your own global variable in the params parameter overrides this flag.