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: checkerboard.rs
    path of file: ./repos/noise-rs/examples
    
    the code of the file until where you have to start completion: //! An example of generating constant valued noise

extern crate noise;

use noise::{utils::*, Checkerboard};

mod utils;

fn main() {
    let checker = Checkerboa
    
fn main() {
    let checker = Checkerboard::new(0);

    utils::write_example_to_file(
        &PlaneMapBuilder::new(checker)
            .set_x_bounds(-5.0, 5.0)
            .set_y_bounds(-5.0, 5.0)
            .build(),
        "checkerboard.png",
    );
}