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: options.rs
    path of file: ./repos/cargo-fuzz/src
    
    the code of the file until where you have to start completion: mod add;
mod build;
mod check;
mod cmin;
mod coverage;
mod fmt;
mod init;
mod list;
mod run;
mod tmin;

pub use self::{
    add::Add, build::Build, check::Check, cmin::Cmin, coverage::Coverage, fmt::Fmt, init::Init,
    list::List, run::Run, tmin::Tmin,
};

use clap::{Parser, ValueEnum};
use std::{fmt as stdfmt, path::PathBuf};

#[derive(Copy, Clone, Debug, Eq, PartialEq, ValueEnum)]
pub enum Sanitizer {
    Address,
    Leak,
    Memory,
    Thread,
    None,
}

impl stdfmt::Display for Sanitizer {
    fn fmt(&self, f: &mut stdfmt::Formatter) -> stdfmt::Result {
        write!(
            f,
            "{}",
            match self {
                Sanitizer::Address => "address",
                Sanitizer::Leak => "leak",
                Sanitizer::Memory => "memory",
               
    
    fn display_build_options() {
        let default_opts = BuildOptions {
            dev: false,
            release: false,
            debug_assertions: false,
            verbose: false,
            no_default_features: false,
            all_features: false,
            features: None,
            build_std: false,
            careful_mode: false,
            sanitizer: Sanitizer::Address,
            triple: String::from(crate::utils::default_target()),
            unstable_flags: Vec::new(),
            target_dir: None,
            coverage: false,
            strip_dead_code: false,
            no_cfg_fuzzing: false,
            no_trace_compares: false,
        };

        let opts = vec![
            default_opts.clone(),
            BuildOptions {
                dev: true,
                ..default_opts.clone()
            },
            BuildOptions {
                release: true,
                ..default_opts.clone()
            },
            BuildOptions {
                debug_assertions: true,
                ..default_opts.clone()
            },
            BuildOptions {
                verbose: true,
                ..default_opts.clone()
            },
            BuildOptions {
                no_default_features: true,
                ..default_opts.clone()
            },
            BuildOptions {
                all_features: true,
                ..default_opts.clone()
            },
            BuildOptions {
                features: Some(String::from("features")),
                ..default_opts.clone()
            },
            BuildOptions {
                sanitizer: Sanitizer::None,
                ..default_opts.clone()
            },
            BuildOptions {
                triple: String::from("custom_triple"),
                ..default_opts.clone()
            },
            BuildOptions {
                unstable_flags: vec![String::from("unstable"), String::from("flags")],
                ..default_opts.clone()
            },
            BuildOptions {
                target_dir: Some(String::from("/tmp/test")),
                ..default_opts.clone()
            },
            BuildOptions {
                coverage: false,
                ..default_opts
            },
        ];

        for case in opts {
            assert_eq!(case, BuildOptions::parse_from(case.to_string().split(' ')));
        }
    }