code: private function getOauthParams($nonce)
      {
          $params = [
              'oauth_nonce'            => $nonce,
              'oauth_timestamp'        => time(),
          ];
  
          if (isset($this->oauth_token)) {
              $params['oauth_token'] = $this->oauth_token;
          }
  
          $params = $this->oauthConfig->toArray($params);
  
          return $params;
      }
docs: Get the oauth parameters as named by the oauth spec
  
  @param string     $nonce  Unique nonce
  @param array      $config Options of the plugin.
  
  @return array