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/pavex/libs/pavex_cli/tests/ui_tests/blueprint/constructors/trait_constraints_on_runtime_singletons
    
    the code of the file until where you have to start completion: use std::rc::Rc;

use pavex::blueprint::{constructor::Lifecycle, rout
    
pub fn blueprint() -> Blueprint {
    let mut bp = Blueprint::new();
    bp.constructor(f!(crate::NonSendSingleton::new), Lifecycle::Singleton);
    bp.constructor(f!(crate::NonCloneSingleton::new), Lifecycle::Singleton);
    bp.constructor(f!(crate::NonSyncSingleton::new), Lifecycle::Singleton);
    // The handler is needed because bounds are only checked for singletons
    // that are used at runtime
    bp.route(GET, "/home", f!(crate::handler));
    bp
}