// @allowJs: true
// @checkJs: true
// @target: es6
// @outDir: ./out
// @declaration: true
// @filename: file.js
class X {
    /**
      * Cancels the request, sending a cancellation to the other party
      * @param {Object} error __auto_generated__
      * @param {string?} error.reason the error reason to send the cancellation with
      * @param {string?} error.code the error code to send the cancellation with
      * @returns {Promise.<*>} resolves when the event has been sent.
      */ 
    async cancel({reason, code}) {}
}

class Y {
    /**
      * Cancels the request, sending a cancellation to the other party
      * @param {Object} error __auto_generated__
      * @param {string?} error.reason the error reason to send the cancellation with
      * @param {Object} error.suberr
      * @param {string?} error.suberr.reason the error reason to send the cancellation with
      * @param {string?} error.suberr.code the error code to send the cancellation with
      * @returns {Promise.<*>} resolves when the event has been sent.
      */ 
    async cancel({reason, suberr}) {}
}