Only have one description and verify handler each

    }

    /**

     * Add a handler that is called every time the exercise executor

     * Set the handler that is called every time the exercise executor

     * sets the description of the exercise.

     * @param {Function} handler Function that takes a description as parameter

     */

    onDescribed(handler) {

        this.#context._describeHandlers.push(handler)

        this.#context._describeHandler = handler

    }

    /**

     * Add a handler that is called every time the exercise's completion

     * Set the handler that is called every time the exercise's completion

     * is verified (this verification might fail or be successful)

     * @param {Function} handler Function that takes the result of the verification (true/false) as parameter 

     */

    onVerified(handler) {

        this.#context._verifyHandlers.push(handler)

        this.#context._verifyHandler = handler

    }

}

 */

class ExerciseExecutionContext {

    constructor() {

        this._describeHandlers = []

        this._verifyHandlers = []

        this._describeHandler = null

        this._verifyHandler = null

        this._confirmExerciseCompletion = null

    }

     * @param {String} description Description of the exercise

     */

    describe(description) {

        this._describeHandlers.forEach(handler => handler(description))

        this._describeHandler(description)

    }

    /**

     */

    verify(command) {

        runCommand(command)

        const verifyHandlers = this._verifyHandlers

        const verifyHandler = this._verifyHandler

        return {

            /**

                    // !! converts any value to a boolean (not a special operator, just two ! (boolean not) operators in series)

                    const result = !!predicate(latestEntry.output)

                    verifyHandlers.forEach(handler => handler(result))

                    verifyHandler(result)

                }, 200)

            }

        }