SegmentAnalogDataIterator* begin_sample_iteration(uint64_t start) const;
void continue_sample_iteration(SegmentAnalogDataIterator* it, uint64_t increase) const;
void end_sample_iteration(SegmentAnalogDataIterator* it) const;
SegmentAnalogDataIterator* begin_sample_iteration(uint64_t start) const;
void continue_sample_iteration(SegmentAnalogDataIterator* it, uint64_t increase) const;
void end_sample_iteration(SegmentAnalogDataIterator* it) const;