public function __construct($vals = null)
{
if (!isset(self::$_TSPEC)) {
self::$_TSPEC = array(1 => array('var' => 'keyspace', 'type' => TType::STRING), 2 => array('var' => 'auth_request', 'type' => TType::STRUCT, 'class' => 'cassandra_AuthenticationRequest'));
}
if (is_array($vals)) {
if (isset($vals['keyspace'])) {
$this->keyspace = $vals['keyspace'];
}
if (isset($vals['auth_request'])) {
$this->auth_request = $vals['auth_request'];
}
}
}