def promotions(options={})
      response = connection.get do |req|
        req.url "promotions", options
      end
      return_error_or_body(response)
    end
def promotions(options={})
      response = connection.get do |req|
        req.url "promotions", options
      end
      return_error_or_body(response)
    end
Get a list of all promotions for the authenticating client.

 @param [Hash]  options
 @option options Integer :campaign_id - Only return promotions for this campaign.
 @option options String :active - Return either active or inactive promotions, use true or false value.
 @option options Integer :limit - The maximum number of records to return.