Importing and Exporting Functions
You might want to provide interfaces to call into secure containers (windows and layers). To do so, you use the import and export statements.
Exporting a function name makes it available to be imported by scripts outside the container without being subject to a container test.Importing a function into your scope creates a new function of the same name as the imported function. Calling that function calls the corresponding function from the secure container.
One should be very careful to not inadvertently allow access to an attacker