code: func (c *DOM) PerformSearch(query string, includeUserAgentShadowDOM bool) (string, int, error) {
  	var v DOMPerformSearchParams
  	v.Query = query
  	v.IncludeUserAgentShadowDOM = includeUserAgentShadowDOM
  	return c.PerformSearchWithParams(&v)
  }
docs: // PerformSearch - Searches for a given string in the DOM tree. Use `getSearchResults` to access search results or `cancelSearch` to end this search session.
  // query - Plain text or query selector or XPath search query.
  // includeUserAgentShadowDOM - True to search in user agent shadow DOM.
  // Returns -  searchId - Unique search session identifier. resultCount - Number of search results.