/// Produces an invalid Token, that is not recognized by the
/// event loop.
///
/// Can be used as a placeholder to avoid `Option<Token>`
Produces an invalid Token, that is not recognized by the
event loop.

Can be used as a placeholder to avoid `Option`
Produces an invalid Token that is not recognized by the event loop . Can be used as a placeholder to avoid ` Option `
pub fn invalid() -> Token {
        Token {
            key: CalloopKey::null(),
            sub_id: std::u32::MAX,
        }
    }
pub fn invalid ( ) -> Token { Token { key : CalloopKey :: null ( ) , sub_id : std :: u32 :: MAX , } }
Produces an invalid Token, that is not recognized by the
event loop.
Produces an invalid Token that is not recognized by the event loop .