How to use the fluture.encaseP2 function in fluture

    .chain(() => Future.encaseP2(emitForAll, 'prerun', this.options.args))
    // Execute the command

    .chain(() => Future.encaseP2(emitForAll, `pre${commandName}`, this.options.args))
    // Trigger generic pre-event

    .chain(value => Future
      .encaseP2(emitForAll, commandName, this.options.args)
      .chain(() => Future.of(value)))
    // Trigger generic post-event, resolving with the value of the command execution

const futureRequest = (thread, maxWait) => encaseP2(
  longPollRequest, thread, maxWait
)

  (bytes, pair) => encaseP2(encryptAES, bytes, pair)

    .chain(value => Future
      .encaseP2(emitForAll, 'run', this.options.args)
      .chain(() => Future.of(value)))
    .mapRej(toArray);

(authKey, msgKey) =>
    encaseP2(aesFromSha1, authKey, msgKey)