Function collect_sequence_content 

fn collect_sequence_content(
    info: &AnimationInfo,
    path: &mut Vec<usize>,
    global_range: Range<f64>,
    sequence_depth: usize,
    expanded: &HashSet<Vec<usize>>,
    clips: &mut Vec<VisibleClip>,
    bands: &mut Vec<SequenceBand>,
    expanded_stacks: &mut Vec<ExpandedStack>,
)

Available on crate feature preview only.