pub mod inner {
    #[cfg(FALSE)]
    pub fn uwu() {}

    #[cfg(FALSE)]
    pub mod doesnt_exist {
        pub fn hello() {}
    }

    pub mod wrong {
        #[cfg(feature = "suggesting me fails the test!!")]
        pub fn meow() {}
    }

    pub mod right {
        #[cfg(feature = "what-a-cool-feature")]
        pub fn meow() {}
    }
}

#[cfg(i_dont_exist_and_you_can_do_nothing_about_it)]
pub fn vanished() {}