Creates and returns a new pubsub client client and subscribes to it.

We were connected, but closed gracefully.

We're in the process of closing the client.

Connected to a server, but not yet linked as a pubsub client.

Not currently connected to a server.

The Client is responsible for maintaining a subscribed redis client, reconnecting and resubscribing if it drops.

The event is sent down the client's Events channel when something happens!.

The listener is used to keep track of events that the client is listening to.

A function which handles an incoming event.

Events that are sent down the "Events" channel.

Used to denote the type of listener - channel or pattern.