| 12345678910111213141516171819202122232425262728293031323334353637383940 | var retry = require('../lib/retry');function attemptAsyncOperation(someInput, cb) {  var opts = {    retries: 2,    factor: 2,    minTimeout: 1 * 1000,    maxTimeout: 2 * 1000,    randomize: true  };  var operation = retry.operation(opts);  operation.attempt(function(currentAttempt) {    failingAsyncOperation(someInput, function(err, result) {      if (err && err.message === 'A fatal error') {        operation.stop();        return cb(err);      }      if (operation.retry(err)) {        return;      }      cb(operation.mainError(), operation.errors(), result);    });  });}attemptAsyncOperation('test input', function(err, errors, result) {  console.warn('err:');  console.log(err);  console.warn('result:');  console.log(result);});function failingAsyncOperation(input, cb) {  return setImmediate(cb.bind(null, new Error('A fatal error')));}
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