使用fast-csv，我如何调用异步验证器？

npm install fast-csv

const csv = require('fast-csv');
const fs = require('fs');
const { promisify } = require('util');
const readFileAsync = promisify(fs.readFile);

async function asyncValidator(row) {
  // 在这里进行异步验证操作
  // 返回一个Promise对象
}

const stream = fs.createReadStream('path/to/your/csv/file.csv');

csv
  .fromStream(stream, { headers: true })
  .validate(asyncValidator)
  .on('data-invalid', (row, rowNumber) => {
    console.error(`Invalid row ${rowNumber}:`, row);
  })
  .on('data', (row) => {
    console.log('Valid row:', row);
  })
  .on('end', () => {
    console.log('CSV file processing complete.');
  });