Macro lib3h_zombie_actor::wait_for_message

macro_rules! wait_for_message {
    ($ghost_actors: expr, $endpoint: ident, $user_data: expr, $regex: expr) => { ... };
    (
        $ghost_actors: expr,
        $endpoint: ident,
        $user_data: expr,
        $regex: expr,
        $options: expr
    ) => { ... };
}