def campaign(campaign_id, options={})
      response = connection.get do |req|
        req.url "campaigns/#{campaign_id}", options
      end
      return_error_or_body(response, response.body.response.campaign)
    end
def campaign(campaign_id, options={})
      response = connection.get do |req|
        req.url "campaigns/#{campaign_id}", options
      end
      return_error_or_body(response, response.body.response.campaign)
    end
Retrieve information about a campaign

 param [String] campaign_id The ID of the venue