*
* @returns `true` if the update is successful, `false` otherwise.
*/
readonly update: (workerNodeKey: number) => boolean
/**
* Chooses a worker node in the pool and returns its key.
*
* @returns `true` if the update is successful, `false` otherwise.
*/
readonly update: (workerNodeKey: number) => boolean
/**
* Chooses a worker node in the pool and returns its key.