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: mod.rs
    path of file: ./repos/sway/test/src/sdk-harness/test_projects/vec_in_abi
    
    the code of the file until where you have to start completion: use fuels::{accounts::wallet::WalletUnlocked, prelude::*, types::Bits256};
use std::str::FromStr;

abigen!(Contract(
    name = "VecInAbiTestContract",
    abi = "test_projects/vec_in_abi/out/release/vec_in_abi-abi.json"
));

async fn get_vec_in_abi_instance() -> (VecInAbiTestContract<WalletUnlocked>, ContractId) {
    let wallet = launch_provider_and_get_wallet().await.unwrap();
    let id = Contract::load_from(
        "test_projects/vec_in_abi/out/release/vec_in_abi.bin",
        LoadConfiguration::default(),
    )
    .unwrap()
    .deploy(&wallet, TxPolicies::default())
    .await
    .unwrap();
    let instance = VecInAbiTestContract::new(id.clone(), wallet);

    (instance, id.into())
}

#[toki
    
async fn test_struct() -> Result<()> {
    let (instance, _id) = get_vec_in_abi_instance().await;
    let contract_methods = instance.methods();

    let input = vec![
        MyStruct {
            first_field: Some(
                Address::from_str(
                    "0x4242424242424242424242424242424242424242424242424242424242424242",
                )
                .unwrap(),
            ),
            second_field: 42,
        },
        MyStruct {
            first_field: None,
            second_field: 43,
        },
        MyStruct {
            first_field: Some(
                Address::from_str(
                    "0x4444444444444444444444444444444444444444444444444444444444444444",
                )
                .unwrap(),
            ),
            second_field: 44,
        },
    ];
    let response = contract_methods.struct_test(input.clone()).call().await?;
    assert_eq!(input, response.value);

    Ok(())
}