pub unsafe extern "C" fn GDALContourProcessOptions(
psOptions: *mut GDALContourOptions,
ppapszStringOptions: *mut *mut *mut c_char,
hSrcDS: *mut GDALDatasetH,
hBand: *mut GDALRasterBandH,
hDstDS: *mut GDALDatasetH,
hLayer: *mut OGRLayerH,
) -> Type