class ZuoraConnect::AppInstanceBase

def queue_start(current_user: 'Default')
  paused_user = Resque.redis.zrange("PauseQueue", 0, -1).map {|key| key.split("__")[0] == "#{self.id}" ? key.split("__")[1] : nil}.compact.first
  if paused_user == current_user || paused_user.blank?
    Resque.redis.zrem("PauseQueue", "#{self.id}__#{paused_user}")
  else
    raise "Can only unpause for user #{paused_user}."
  end
end