| 12345678910111213141516171819 | 'use strict';/** * A `Cancel` is an object that is thrown when an operation is canceled. * * @class * @param {string=} message The message. */function Cancel(message) {  this.message = message;}Cancel.prototype.toString = function toString() {  return 'Cancel' + (this.message ? ': ' + this.message : '');};Cancel.prototype.__CANCEL__ = true;module.exports = Cancel;
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