Macro define_dary_segment_tree 

macro_rules! define_dary_segment_tree {
    (
        $name:ident,
        $doc:literal,
        $value:ty,
        $branch:expr,
        $unit:expr,
        $operation:ident,
        $backend:expr,
        $sum:literal,
        $reduce_avx2:ident,
        $reduce_range_avx2:ident,
        $reduce_avx512:ident,
        $reduce_range_avx512:ident
    ) => { ... };
}