How to use the node-abi.getTarget function in node-abi

function prebuild (opts, target, runtime, callback) {
  var pkg = opts.pkg
  var buildLog = opts.buildLog || function () {}
  opts.target = target
  opts.runtime = runtime

  if (opts.runtime === 'node-webkit') {
    opts.backend = 'nw-gyp'
  }

  var buildLogMessage = 'Preparing to prebuild ' + pkg.name + '@' + pkg.version + ' for ' + runtime + ' ' + target + ' on ' + opts.platform + '-' + opts.arch + ' using ' + opts.backend
  if (opts.libc && opts.libc.length > 0) buildLogMessage += 'using libc ' + opts.libc
  buildLog(buildLogMessage)

  // --target can be target or abi
  if (!napi.isNapiRuntime(runtime)) target = getTarget(target, runtime)
  var abi = getAbi(target, runtime)

  var tarPath = getTarPath(opts, abi)
  fs.stat(tarPath, function (err, st) {
    if (!err && !opts.force) {
      buildLog(tarPath + ' exists, skipping build')
      return callback(null, tarPath)
    }
    var tasks = [
      function (cb) {
        build(opts, target, function (err, filenames) {
          if (err) return cb(err)
          cb(null, filenames)
        })
      },
      function (filenames, cb) {

function build({target, runtime, abi}) {
  try {
    abi && getTarget(target, runtime);
  } catch (err) {
    return Promise.resolve();
  }

  const args = ['--verbose', '-r', runtime, '-t', target];

  if (libc.isNonGlibcLinux) {
    process.env.LIBC = libc.family;
  }

  if (PUBLISH_BINARY) {
    args.push('-u', PREBUILD_TOKEN);
  }

  return new Promise((resolve, reject) => {
    const proc = spawn('prebuild', args, { env: npmRunPath.env() });