/**
     * Perform whatever pre-update setup is required.
     * Return true for success, false for failure.
     * If a failure, update will not be called.
     * @method jibo.flow.ActivityImplementation#start
     * @param {jibo.flow.Context} context The executor's context
     * @returns {boolean}
     */

    /**
     * Perform the activity's normal update action. This will continue to be
     * called on every update tick until it returns SUCCEEDED or FAILED.
     * @method jibo.flow.ActivityImplementation#update
     * @param {jibo.flow.Context} context The executor's context
     * @returns {jibo.bt.Status}
     */

    /**
     * Stop any ongoing activity (called during the processing of Flow.Interrupt and general exceptions).
     * This is provided so that an asynchronous activity can be stopped and its resources released.
     * @method jibo.flow.ActivityImplementation#stop
     * @param {jibo.flow.Context} context The executor's context
     * @return {Promise<void>} A promise that resolves after any asynchronous cleanup has been performed.
     */

    /**
     * Destroy the activity, doing a full cleanup of any resources that need releasing.
     * @method jibo.flow.ActivityImplementation#destroy
     */

    /**
     * If the Flow has a transition or Flow.Catch in scope capable of handling the given JS exception, turn it into
     * a Flow ~Exception.* and process it internally, otherwise stop Flow execution and throw the JS exception.
     * @method jibo.flow.ActivityImplementation#formOrThrowException
     * @param jsexception {Exception} Javascript Exception object to throw as a JS exception or convert to a Flow exception
     * @returns {string} the name of the Flow Exception to be thrown
     */