A simple refactoring to distinguish internal from external keys
A simple refactoring to distinguish internal from external keys

cshung/MiscLab,cshung/MiscLab,cshung/MiscLab,cshung/MiscLab,cshung/MiscLab,cshung/MiscLab,cshung/MiscLab,cshung/MiscLab,cshung/MiscLab,cshung/MiscLab