{"ast_node_type":"variable","tokens":[{"end":65,"kind":"keyword","start":0,"text":"let"}]}
        let shuffle_indices = Vec::from_iter(0..type_size_bytes);
        let type_size_bytes = elem_size_bytes as u64 * in_len;
        let byte_vector_type = bx.context.new_vector_type(bx.type_u8(), type_size_bytes);