pub unsafe extern "C" fn heif_region_item_add_region_polyline(
arg1: *mut heif_region_item,
pts_array: *const i32,
nPoints: c_int,
out_region: *mut *mut heif_region
) -> heif_error
pub unsafe extern "C" fn heif_region_item_add_region_polyline(
arg1: *mut heif_region_item,
pts_array: *const i32,
nPoints: c_int,
out_region: *mut *mut heif_region
) -> heif_error