How to add multiple subscribers at a time in a list using campaigning (0.15.0) gem?

Now i have added subscribers one at a time to a list.

How to add multiple subscribers at a time to list in campaign monitor.

I am using campaigning (0.15.0) gem in ruby on rails application. rails version i*s 2.3.4*.

In campaign monitor documentation here [http://www.campaignmonitor.com/api/subscribers/#importing_subscribers][1]

Any one pl开发者_StackOverflows give me answers.

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Campaigning gem have the functionality to import single subscriber at a time. And use the gem CreateSend. By this gem you can access the v3 api of campaign monitor so that we can import mulitiple subscriber at a time.