You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: lib.rs
    path of file: ./repos/dozer/dozer-sql/expression/src
    
    the code of the file until where you have to start completion: pub mod aggregate;
mod arg_utils;
pub mod builder;
mod case;
mod cast;
mod comparison;
mod conditional;
mod datetime;
pub mod error;
pub mod execution;
mod geo;
mod in_list;
mod json_functions;
mod logical;
mod mathematical;
pub mod operator;
pub mod scalar;

#[cfg(feature = "javascript")]
mod javascript;
#[cfg(feature = "onnx")]
mod onnx;
#[cfg(feature = "python")]
mod python_ud
    
        fn arbitrary_with(_args: Self::Parameters) -> Self::Strategy {
            (
                NaiveDateTime::MIN.year()..NaiveDateTime::MAX.year(),
                1..13u32,
                1..32u32,
                0..NaiveDateTime::MAX.second(),
                0..NaiveDateTime::MAX.nanosecond(),
            )
                .prop_map(|(year, month, day, secs, nano)| {
                    let timezone_east = FixedOffset::east_opt(8 * 60 * 60).unwrap();
                    let date = NaiveDate::from_ymd_opt(year, month, day);
                    // Some dates are not able to created caused by leap in February with day larger than 28 or 29
                    if date.is_none() {
                        return ArbitraryDateTime(DateTime::default());
                    }
                    let time = NaiveTime::from_num_seconds_from_midnight_opt(secs, nano).unwrap();
                    let datetime = DateTime::<FixedOffset>::from_naive_utc_and_offset(
                        NaiveDateTime::new(date.unwrap(), time),
                        timezone_east,
                    );
                    ArbitraryDateTime(datetime)
                })
                .boxed()
        }