Function ImPlot_PlotBarsS8PtrInt 

pub unsafe extern "C" fn ImPlot_PlotBarsS8PtrInt(
    label_id: *const c_char,
    values: *const ImS8,
    count: c_int,
    width: f64,
    shift: f64,
    offset: c_int,
    stride: c_int,
)