code: public function search($sessionId, Search $search, $hits)
      {
          $parameters = [
              'query' => [],
              'body' => json_encode(['sessionId' => $sessionId, 'search' => $search, 'hits' => $hits], JSON_UNESCAPED_UNICODE),
              'headers' => [],
          ];
  
          $result = $this->post('v1/events/search', $parameters, true);
  
          return $result;
      }
docs: Track a Search.
  
  NOTICE!
  Execution of this call will be delayed until destruct!
  
  @param int    $sessionId The session id to log the search on
  @param Search $search    The Search that was made
  @param int    $hits      Number of hits for this search