pub mod outermost {
pub fn middle_function() {
}
pub fn middle_secret_function() {}
pub mod inside {
pub fn inner_function() {
}
pub fn secret_function() {}
}
}
fn try_me() {
outermost::middle_function();
outermost::middle_secret_function();
outermost::inside::inner_function();
outermost::inside::secret_function();
}