{"ast_node_type":"other","tokens":[{"end":115,"kind":"keyword","start":0,"text":"//"}]}
        // a naive initialization mask copying algorithm would repeatedly have to read the initialization mask from
        // Since we are copying `size` bytes from `src` to `dest + i * size` (`for i in 0..repeat`),
        // the source and write it to the destination. Even if we optimized the memory accesses,