Syntax and File structure
Every Alan file is made up of two parts, the imports and body. In Alan all imports must be declared at the beginning of the file, and once anything else is declared imports are no longer allowed.
The body is simply everything else that can be declared in the file: types, constants, functions, operators, interfaces, events, and event handlers. Of these everything but event handlers can be exports that can be used by other modules, even things simply imported from another module. These two levels of "visibility" in the file are part of an implied structure: scope.