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: example_lp.rs
    path of file: ./repos/Clarabel.rs/examples/rust
    
    the code of the file until where you have to start completion: #![allow(non_snake_case)]
use clarabel::algebra::*;
use clarabel::solver::*;

fn main() {
    let P: CscMatrix<f64> = CscMatrix::<f64>::zeros((2, 2));
    let q = vec![1., -1.];

    //a 2-d box constraint, separated into 4 inequalities.
    //A = [I; -I]
    let _A = CscMatrix::new(
        4,                      // m
 
    
fn main() {
    let P: CscMatrix<f64> = CscMatrix::<f64>::zeros((2, 2));
    let q = vec![1., -1.];

    //a 2-d box constraint, separated into 4 inequalities.
    //A = [I; -I]
    let _A = CscMatrix::new(
        4,                      // m
        2,                      // n
        vec![0, 2, 4],          // colptr
        vec![0, 2, 1, 3],       // rowval
        vec![1., -1., 1., -1.], // nzval
    );

    // easier way - use the From trait to construct A:
    let A = CscMatrix::from(&[
        [1., 0.],  //
        [0., 1.],  //
        [-1., 0.], //
        [0., -1.], //
    ]);

    let b = vec![1.; 4];

    let cones = [NonnegativeConeT(4)];

    let settings = DefaultSettingsBuilder::default()
        .equilibrate_enable(true)
        .max_iter(50)
        .build()
        .unwrap();

    let mut solver = DefaultSolver::new(&P, &q, &A, &b, &cones, settings);

    solver.solve();
}