matrix_engine 0.2.4

#[macro_export]
macro_rules! impl_all {
    ($mac:ident $t:tt $($ts:tt)+) => {
        $mac!($t $($ts)*);
        $crate::impl_all!($mac $($ts)+);
    };
    ($mac:ident $t:ident) => {
        $mac!($t);
    };
    ($mac:ident) => {
        $crate::impl_all!(
            $mac
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        );
    }
}