How to get m_LineContainer from the labelObject?

Thank you for the great work, it helps me a lot. currently, I need the points positions in the m_LineContainer of labelObject? As I know, m_LineContainer is private variable, how can I get it from my code? Thanks a lot.

itk::LabelObject exposes two iterators for accessing its lines, ConstLineIterator and ConstIndexIterator.

Thanks a lot.