protected function getDefaultGrantTypes()
{
$grantTypes = parent::getDefaultGrantTypes();
$aud = $this->getJwtAudience();
if (!empty($aud)) {
$jwtBearer = new bdApi_OAuth2_GrantType_JwtBearer(reset($this->storages), $aud);
$grantTypes[$jwtBearer->getQuerystringIdentifier()] = $jwtBearer;
}
return $grantTypes;
}