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/tantivy/columnar/src/column_values/u64_based
    
    the code of the file until where you have to start completion: mod bitpacked;
mod blockwise_linear;
mod line;
mod linear;
mod stats_collec
    
    fn try_from_code(code: u8) -> Option<CodecType> {
        match code {
            0u8 => Some(CodecType::Bitpacked),
            1u8 => Some(CodecType::Linear),
            2u8 => Some(CodecType::BlockwiseLinear),
            _ => None,
        }
    }