A function that is used to send a message to the queue.
This is only defined here so we can manually monkey patch it when we are closing down the channel
An array that holds the pending rpc messsages for the queue's channel.
A reply object that is used for RPC messages, or null if there's nothing
This is only defined here so we can manually clear it when we are closing down the channel
An array of callbacks or nulls for a ConnectionChannel.
A type alias for a channel that can be either a regular
amqplib.Channelor aamqplib.ConfirmChannel.