Keyword "super" is used in solution for 03_ticket_v1/03_modules but is not explained good in book

[Galser]

There is an exercise accompanying 03_ticket_v1/03_modules and solution contains usage of special path part super :

    // TODO: Make this code compile, either by adding a `use` statement or by using
    //  the appropriate path to refer to the `Ticket` struct.
    use super::Ticket;

While in the book itself when unexperienced person reading a paragraph it looks like this :

You can compose the path in various ways:

• starting from the root of the current crate, e.g. crate::module_1::MyStruct
• starting from the parent module, e.g. super::my_function
• starting from the current module, e.g. sub_module_1::MyStruct

So it's not clear - was super the name of parent module? Or is it some kind of "special" case where module is inlined in code file? It is maybe a small thing, but it's going to cause some people scratching their heads :-) Maybe there can be a hint/link to https://doc.rust-lang.org/rust-by-example/mod/super.html ?

Thank you!