async function run() {
    const { ClientBuilder } = require('@iota/client');

    // client will connect to testnet by default
    const client = new ClientBuilder().build();

    const outputs = await client.getAddressOutputs('atoi1qp9427varyc05py79ajku89xarfgkj74tpel5egr9y7xu3wpfc4lkpx0l86');
    console.log(outputs);
}

run()