How to use the @0x/contract-artifacts.ERC20Proxy.compilerOutput function in @0x/contract-artifacts

import { ERC20ProxyContract } from '@0x/abi-gen-wrappers';
import { ERC20Proxy } from '@0x/contract-artifacts';
import { AssetProxyId } from '@0x/types';
import { Web3Wrapper } from '@0x/web3-wrapper';
import { ContractAbi } from 'ethereum-types';
import * as _ from 'lodash';

import { assert } from '../utils/assert';
import { _getDefaultContractAddresses } from '../utils/contract_addresses';

/**
 * This class includes the functionality related to interacting with the ERC20Proxy contract.
 */
export class ERC20ProxyWrapper {
    public abi: ContractAbi = ERC20Proxy.compilerOutput.abi;
    public address: string;
    private readonly _web3Wrapper: Web3Wrapper;
    private readonly _erc20ProxyContract: ERC20ProxyContract;
    /**
     * Instantiate ERC20ProxyWrapper
     * @param web3Wrapper Web3Wrapper instance to use
     * @param networkId Desired networkId
     * @param address The address of the ERC20Proxy contract. If undefined, will
     * default to the known address corresponding to the networkId.
     */
    constructor(web3Wrapper: Web3Wrapper, networkId: number, address?: string) {
        this._web3Wrapper = web3Wrapper;
        this.address = address === undefined ? _getDefaultContractAddresses(networkId).erc20Proxy : address;
        this._erc20ProxyContract = new ERC20ProxyContract(
            this.address,
            this._web3Wrapper.getProvider(),