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: main.rs
    path of file: ./repos/raft-rs/examples/five_mem_node
    
    the code of the file until where you have to start completion: // Copyright 2019 TiKV Project Authors. Licensed under Apache-2.0.

// We use `default` method a lot to be support prost and rust-protobuf at the
// same time. And reassignment can be optimized by compiler.
#![allow(clippy::field_reassign_with_default)]

use slog::Drain;
use st
    
    fn normal(key: u16, value: String) -> (Self, Receiver<bool>) {
        let (tx, rx) = mpsc::sync_channel(1);
        let proposal = Proposal {
            normal: Some((key, value)),
            conf_change: None,
            transfer_leader: None,
            proposed: 0,
            propose_success: tx,
        };
        (proposal, rx)
    }