def aggregate_request(request)
      return false unless request
      @aggregators.each { |agg| agg.aggregate(request) }
      true
    end
def aggregate_request(request)
      return false unless request
      @aggregators.each { |agg| agg.aggregate(request) }
      true
    end
Push a request to all the aggregators (@aggregators).
 <tt>request</tt> The request to push to the aggregators.