#[no_mangle]
extern "C" fn ICU4XCustomTimeZone_gmt_offset_seconds(
this: &ICU4XCustomTimeZone,
) -> DiplomatResult<i32, ICU4XError>
#[no_mangle]
extern "C" fn ICU4XCustomTimeZone_gmt_offset_seconds(
this: &ICU4XCustomTimeZone,
) -> DiplomatResult<i32, ICU4XError>