package nested_list;
struct nested_list_t
{
byte arbitrary;
int32_t nsegments;
segment_t segments[nsegments];
}
struct pair_t
{
int64_t left;
double right;
}
struct segment_t
{
int32_t nsingles;
int32_t singles[nsingles];
int32_t npairs;
pair_t pairs[npairs];
}