SegmentRawDataIterator* begin_raw_sample_iteration(uint64_t start);
void continue_raw_sample_iteration(SegmentRawDataIterator* it, uint64_t increase);
void end_raw_sample_iteration(SegmentRawDataIterator* it);
SegmentRawDataIterator* begin_raw_sample_iteration(uint64_t start);
void continue_raw_sample_iteration(SegmentRawDataIterator* it, uint64_t increase);
void end_raw_sample_iteration(SegmentRawDataIterator* it);