out_stream_class = borrow_mapped_stream_class(md_maps, in_stream_class);
BT_ASSERT(out_stream_class);
/* Create an output event class. */
out_event_class = bt_event_class_create_with_id(out_stream_class,
out_stream_class = borrow_mapped_stream_class(md_maps, in_stream_class);
BT_ASSERT(out_stream_class);
/* Create an output event class. */
out_event_class = bt_event_class_create_with_id(out_stream_class,