Function SegmentedButton 

pub fn SegmentedButton(
    selected: &[usize],
    segments: Vec<SegmentConfig>,
    config: SegmentedButtonConfig,
) -> View

M3 Segmented Button - a row of toggle segments. selected contains the indices of selected segments (single-select: pass a single-element set). Each segment is shaped independently: first has rounded left corners, last has rounded right corners, middle segments are rectangular.