code: public function app_register(
          string $client_name,
          string $redirect_uris,
          string $scopes,
          string $website = ''
      ): array {
          return $this->createApp($client_name, $redirect_uris, $scopes, $website);
      }
docs: @deprecated PSR
  @see createApp()
  
  @param string $client_name
  @param string $redirect_uris
  @param string $scopes
  @param string $website
  
  @return array