Function ImPlot3D_PlotMesh_S8Ptr 

pub unsafe extern "C" fn ImPlot3D_PlotMesh_S8Ptr(
    label_id: *const c_char,
    vtx_xs: *const ImS8,
    vtx_ys: *const ImS8,
    vtx_zs: *const ImS8,
    idxs: *const c_uint,
    vtx_count: c_int,
    idx_count: c_int,
    spec: ImPlot3DSpec_c,
)