Configures the task queues for sending and receiving activities.
inbox: MessageQueue
The message queue for incoming activities. If not provided, incoming activities will not be queued and will be processed immediately.
outbox: MessageQueue
The message queue for outgoing activities. If not provided, outgoing activities will not be queued and will be sent immediately.
fanout: MessageQueue
The message queue for fanning out outgoing activities. If not provided, outgoing activities will not be fanned out in the background, but will be fanned out immediately, which causes slow response times on Context.sendActivity calls.