{"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"bytes[2..6].copy_from_slice(&index.as_u32().to_le_bytes());"}]}
        bytes[2..6].copy_from_slice(&index.as_u32().to_le_bytes());
        bytes[..2].copy_from_slice(&head.to_le_bytes());
        bytes[6..22].copy_from_slice(&hash.to_le_bytes());