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: struct.rs
    path of file: ./repos/ketos/examples
    
    the code of the file until where you have to start completion: //! Defining a struct that can be constructed in Ketos

extern crate ketos;
#[macro_use] extern crate ketos_derive;

use ketos::{Interpreter, FromValue};

// Define a struct with necessary conversion traits
#[derive(Clone, Debug, ForeignValue, FromValueClone, StructValue)]
struct Thing {
    // Any type that implements `FromV
    
fn main() {
    // First, create the interpreter.
    let interp = Interpreter::new();

    // Before Ketos code can construct a Thing value, it needs to know about it.
    interp.scope().register_struct_value::<Thing>();

    // These structs are created just like Ketos-defined struct types,
    // using the `new` function.
    let value = interp.run_code(r#"
        (new Thing
            :name "thing-1"
            :thing-count 9000
            :type "thing")
        "#, None).unwrap();

    // Extract the `Thing` from the Ketos value.
    let thing = Thing::from_value(value).unwrap();

    println!("{:?}", thing);
}