/**
* Authenticate with an OAuth2 code
*
* @param string $code
*
* @return FamilySearchClient
*/
public function authenticateViaOAuth2AuthCode($code)
{
$this->requireClientIdAndRedirectURI();
$this->treeState->authenticateViaOAuth2AuthCode($code, $this->redirectURI, $this->clientId);
return $this;
}