18. The system of claim 17 , wherein the outside property and the sandbox property of the object exist outside and inside of the sandbox, respectively, and operate without conflict.
17. The system of claim 12 , wherein the computer-readable medium is further encoded with instructions, which when executed by the one or more processors, causes the system to: implement an object, wherein the object has an outside property that is visible in the environment but is invisible in the first sandbox, wherein the outside property has a particular name; wherein the object has a sandbox property that is visible in the first sandbox but is invisible in the environment, wherein the sandbox property also has the particular name.