Macro more_collections::indexvecmultimap
source ยท macro_rules! indexvecmultimap { (@single $($x:tt)*) => { ... }; (@count $($rest:expr),*) => { ... }; ($($key:expr => {$($value:expr),* },)+) => { ... }; ($($key:expr => {$($value:expr),* }),*) => { ... }; }