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: statements.rs
    path of file: ./repos/solang/tests/polkadot_tests
    
    the code of the file until where you have to start completion: // SPDX-License-Identifier: Apache-2.0

use crate::build_solidity;
use parity_scale_codec::Encode;

#[test]
fn destruct_from_array() {
    #[derive
    
fn destruct_from_struct() {
    #[derive(Encode)]
    struct S1(Vec<u32>);

    #[derive(Encode)]
    struct S2(Vec<bool>);

    #[derive(Encode)]
    struct Arg {
        values: S1,
        fakes: S2,
        id: Vec<u8>,
    }

    let mut runtime = build_solidity(
        "
        contract BlindAuction {
            struct S1 { uint32[] u; }
            struct S2 { bool[] b; }
        
            function reveal(
                S1 values,
                S2 fakes,
                bytes memory id
            ) external pure returns (bool) {
                (uint32 value, bool fake) = (values.u[0], fakes.b[0]);
                return id == abi.encodePacked(value, fake);
            }
        }",
    );

    let values = S1(vec![1]);
    let fakes = S2(vec![true]);
    let id = vec![1, 0, 0, 0, 1];
    runtime.function("reveal", Arg { values, fakes, id }.encode());
    assert_eq!(runtime.output(), true.encode());
}