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: abstract.rs
    path of file: ./repos/janetrs/src/types
    
    the code of the file until where you have to start completion: //! Module of the JanetAbstract abstractions.
//!
//! In this module you can find the definitions of types and traits to allow to work with
//! [`JanetAbstract`]. Most of 
    
    fn non_copy() -> Result<(), crate::client::Error> {
        let _client = crate::client::JanetClient::init()?;

        let test = JanetAbstract::new(TestDrop(true));
        let val = test.get::<TestDrop>();
        assert_eq!(Ok(&ManuallyDrop::new(TestDrop(true))), val);

        Ok(())
    }