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/kcl/kclvm/driver/src
    
    the code of the file until where you have to start completion: use anyhow::Result;
pub mod arguments;
pub mod kpm;
pub const DEFAULT_PROJECT_FILE: &str = "project.yaml";

#[cfg(t
    
pub fn expand_input_files(k_files: &[String]) -> Vec<String> {
    let mut res = vec![];
    for file in k_files {
        if let Ok(files) = expand_if_file_pattern(file.to_string()) {
            if !files.is_empty() {
                res.extend(files);
            } else {
                res.push(file.to_string())
            }
        } else {
            res.push(file.to_string())
        }
    }
    res
}