code: public function createApp(string $client_name, string $redirect_uris, string $scopes, string $website = ''): array
      {
          $params = compact('client_name', 'redirect_uris', 'scopes', 'website');
  
          return $this->post('/apps', $params);
      }
docs: Register a new OAuth client app on the target instance
  
  @param string $client_name
  @param string $redirect_uris
  @param string $scopes
  @param string $website
  
  @return array