Function ImPlot_PlotStemsS8PtrInt 

pub unsafe extern "C" fn ImPlot_PlotStemsS8PtrInt(
    label_id: *const c_char,
    values: *const ImS8,
    count: c_int,
    y_ref: f64,
    xscale: f64,
    x0: f64,
    offset: c_int,
    stride: c_int,
)