code: function (serverResponse, {bidderRequest}) {
      serverResponse = serverResponse.body;
      let bids = [];
  
      if (!utils.isArray(serverResponse)) {
        return parseRTBResponse(serverResponse, bidderRequest);
      }
  
      serverResponse.forEach(serverBidResponse => {
        bids = utils.flatten(bids, parseRTBResponse(serverBidResponse, bidderRequest));
      });
  
      return bids;
    }
docs: Unpack the response from the server into a list of bids
  @param serverResponse
  @param bidderRequest
  @return {Bid[]} An array of bids which were nested inside the server