Can't publish a message into the exlusive queue about amqp HOT 1 CLOSED

def init(opts) do
    Process.flag(:trap_exit, true)

    # Some default setting for a connection
    config = @defaults
        |> Keyword.merge(opts)
        |> Confex.Resolver.resolve!

    {:ok, connection} = open_connection(opts)  # Create a new connection for AMQP here
    Process.monitor(connection.pid)            

    # Let to a developer to do stuff here and use the result of it later
    # For example, it could be a couple of channels for you purposes
    {:ok, meta} = configure(connection, config)  
    {:ok, [connection: connection, config: config, meta: meta]}
end