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/vim-clap/crates/maple_core/src/process
    
    the code of the file until where you have to start completion: pub mod subprocess;
pub mod tokio;

use crate::cache::{push_cache_digest, Digest};
use crate::datastore::{generate_cache_file_path, CACHE_INFO_IN_MEMORY};
use rayon::prelude::*;
use serde::{Deserialize, Serialize};
use std::path
    
pub fn process_output(output: std::process::Output) -> std::io::Result<Vec<String>> {
    if !output.status.success() && !output.stderr.is_empty() {
        return Err(std::io::Error::new(
            std::io::ErrorKind::Other,
            String::from_utf8_lossy(&output.stderr),
        ));
    }

    let mut lines = output
        .stdout
        .par_split(|x| x == &b'\n')
        .map(|s| String::from_utf8_lossy(s).to_string())
        .collect::<Vec<_>>();

    // Remove the last empty line.
    if lines.last().map(|s| s.is_empty()).unwrap_or(false) {
        lines.pop();
    }

    Ok(lines)
}