Function cast_string_to_timestamp_impl

fn cast_string_to_timestamp_impl<'a, I: Iterator<Item = Option<&'a str>>, T: ArrowTimestampType, Tz: TimeZone>(
    iter: I,
    tz: &Tz,
    cast_options: &CastOptions<'_>,
) -> Result<PrimitiveArray<T>, ArrowError>