int lttng_msgpack_begin_map(struct lttng_msgpack_writer *writer, size_t count);
int lttng_msgpack_end_map(struct lttng_msgpack_writer *writer);
int lttng_msgpack_begin_array(
struct lttng_msgpack_writer *writer, size_t count);
int lttng_msgpack_end_array(struct lttng_msgpack_writer *writer);
int lttng_msgpack_begin_map(struct lttng_msgpack_writer *writer, size_t count);
int lttng_msgpack_end_map(struct lttng_msgpack_writer *writer);
int lttng_msgpack_begin_array(
struct lttng_msgpack_writer *writer, size_t count);
int lttng_msgpack_end_array(struct lttng_msgpack_writer *writer);