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: mod.rs
    path of file: ./repos/polars/crates/polars-core/src/chunked_array/temporal
    
    the code of the file until where you have to start completion: //! Traits and utilities for temporal data.
pub mod con
    
pub fn parse_time_zone(tz: &str) -> PolarsResult<Tz> {
    match tz.parse::<Tz>() {
        Ok(tz) => Ok(tz),
        Err(_) => {
            polars_bail!(ComputeError: "unable to parse time zone: '{}'. Please check the Time Zone Database for a list of available time zones", tz)
        },
    }
}