Function ImPlot_PlotHeatmap_U8Ptr 

pub unsafe extern "C" fn ImPlot_PlotHeatmap_U8Ptr(
    label_id: *const c_char,
    values: *const ImU8,
    rows: c_int,
    cols: c_int,
    scale_min: f64,
    scale_max: f64,
    label_fmt: *const c_char,
    bounds_min: ImPlotPoint,
    bounds_max: ImPlotPoint,
    flags: ImPlotHeatmapFlags,
)