> > Here there is an "interface", the record of functions. But each module must
> > basically define a function returning that record. Sure, the module must
> > implement that function, the same as you must implement it in OO languages,
> > but each module can also make up its mind for the name of the function.
>
> You could also name the classes implementing the interface in any way,
> but will probably choose telling und helpful names.

Right, in an OO language i name the subclass, here the function. I was thinking the way i was because i import those modules qualified so the module name already gives me a description.

Thank you!

Emmanuel