• __init__() : static.VelocityTracker , tracker.PersonEstimate , tracker.VelocityTracker
• age() : tracker.PersonEstimate
• get_id() : tracker.PersonEstimate
• get_person() : tracker.PersonEstimate
• pm_cb() : tracker.VelocityTracker
• publish() : tracker.VelocityTracker
• publish_markers() : tracker.PersonEstimate
• spin() : static.VelocityTracker , tracker.VelocityTracker
• update() : tracker.PersonEstimate
• velocity() : tracker.PersonEstimate