suggest не работает

Использую пакет https://github.com/manticoresoftware/manticoresearch-php

$config = ['host'=>'manticore','port'=>9308]
$client = new Client($config);
$suggest = $client->index('suggest');
$suggest->create([
            'explanation' => [
                'type' => 'text',
            ],
        ],
        [
            'min_infix_len' => 1,
            'dict' => 'keywords',
        ]);

$suggest->addDocument([
                'explanation' => 'Автобус',
            ]);

затем:

$query = [
        'index' => 'suggest',
        'body' => [
            'query' => 'овтобус',
            'options' => [
                'limit' => 1,
            ],
        ],
    ];
    
$r = $client->suggest($query);

Результат пустой.