How to use the core-util-is._errnoException function in core-util-is

if (!timeoutMs) timeoutMs = 100;
  var timeout = timeoutPromise(error, timeoutMs);
  return Promise.race([onResolvedOrRejected(promise, function () {
    return timeout.clear();
  }), timeout]);
};

function forEach(xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

if (!util._errnoException) {
  var uv;
  util._errnoException = function (err, syscall) {
    if (util.isUndefined(uv)) try {
      uv = process.binding('uv');
    } catch (e) {}
    var errname = uv ? uv.errname(err) : '';
    var e = new Error(syscall + ' ' + errname);
    e.code = errname;
    e.errno = errname;
    e.syscall = syscall;
    return e;
  };
}

}
  if (!error) error = 'timeout';
  if (!timeoutMs) timeoutMs = 100;
  var timeout = timeoutPromise(error, timeoutMs);
  return Promise.race([onResolvedOrRejected(promise, function () {
    return timeout.clear();
  }), timeout]);
};

function forEach(xs, f) {
  for (var i = 0, l = xs.length; i < l; i++) {
    f(xs[i], i);
  }
}

if (!util._errnoException) {
  var uv;
  util._errnoException = function (err, syscall) {
    if (util.isUndefined(uv)) try {
      uv = process.binding('uv');
    } catch (e) {}
    var errname = uv ? uv.errname(err) : '';
    var e = new Error(syscall + ' ' + errname);
    e.code = errname;
    e.errno = errname;
    e.syscall = syscall;
    return e;
  };
}