code: function buildUrlFromAdserverUrlComponents(components, bid, options) {
    const descriptionUrl = getDescriptionUrl(bid, components, 'search');
    if (descriptionUrl) { components.search.description_url = descriptionUrl; }
  
    const encodedCustomParams = getCustParams(bid, options);
    components.search.cust_params = (components.search.cust_params) ? components.search.cust_params + '%26' + encodedCustomParams : encodedCustomParams;
  
    return buildUrl(components);
  }
docs: Builds a video url from a base dfp video url and a winning bid, appending
  Prebid-specific key-values.
  @param {Object} components base video adserver url parsed into components object
  @param {AdapterBidResponse} bid winning bid object to append parameters from
  @param {Object} options Options which should be used to construct the URL (used for custom params).
  @return {string} video url