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/rust-farm/handson/bookshop-grpc-service/src
    
    the code of the file until where you have to start completion: use crate::bookshop::bookshop_server::BookshopServer;
use crate::bookshop::FILE_DESCRIPTOR_SET;
use crate::bookshop_service::BookShopService;
use tonic::transport::Server;

mod bookshop_service;
mod store;

mod bookshop {
    include!("bookshop.rs");
    pub(crate) const FILE_DESCRIPTOR_SET: &[u8] =
        tonic::include_file_descriptor_set!("service_descriptor");
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let service_address = "127.0.0.1:4567".parse().unwrap();
    
    
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let service_address = "127.0.0.1:4567".parse().unwrap();
    let bookshop = BookShopService::default();
    let reflection_service = tonic_reflection::server::Builder::configure()
        .register_encoded_file_descriptor_set(FILE_DESCRIPTOR_SET)
        .build()
        .unwrap();
    println!(
        "Belli kategori için rastgele kitap önerisi sunma hizmeti.\nBookShop gRPC servisi {} adresinden dinlemede...",
        service_address
    );
    Server::builder()
        .add_service(BookshopServer::new(bookshop))
        .add_service(reflection_service)
        .serve(service_address)
        .await?;

    Ok(())
}