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: rename.rs
    path of file: ./repos/fluvio/crates/fluvio-cli/src/profile
    
    the code of the file until where you have to start completion: use clap::Parser;
use anyhow::Result;

use fluvio::config::ConfigFile;

#[derive(Parser, Debug)]
pub struct RenameOpt {
    /// The name of the profile to renam
    
    pub fn process(self) -> Result<()> {
        let mut config_file = match ConfigFile::load(None) {
            Ok(config) => config,
            Err(e) => {
                eprintln!("unable to find Fluvio config file");
                return Err(e.into());
            }
        };

        config_file.mut_config().rename_profile(&self.from, self.to);
        config_file.save()?;
        Ok(())
    }