pub unsafe extern "C" fn gsGetZonedTimeDiff(
timestamp1: GSTimestamp,
timestamp2: GSTimestamp,
timeUnit: GSTimeUnit,
zone: *const GSTimeZone,
) -> i64pub unsafe extern "C" fn gsGetZonedTimeDiff(
timestamp1: GSTimestamp,
timestamp2: GSTimestamp,
timeUnit: GSTimeUnit,
zone: *const GSTimeZone,
) -> i64