v1.2.2

See https://support.kraken.com/hc/en-us/articles/205893708-What-is-the-minimum-order-size-

Check minimal order size for pair

$orderVolume = new \Butschster\Kraken\OrderVolume;
$pair = $client->getAssetPairs('EOSETH')->first();
$isValidSize = $orderVolume->checkMinimalSizeForPair($pair, 1.1);

Check minimal order size for currency

$orderVolume = new \Butschster\Kraken\OrderVolume;
$isValidSize = $orderVolume->checkMinimalSizeForPair('EOS', 1.1);

Get minimal order size

$orderVolume = new \Butschster\Kraken\OrderVolume;

// Pair
$pair = $client->getAssetPairs('EOSETH')->first();
$minimalsize = $orderVolume->getMinimalSizeForPair($pair);

// Currency
$minimalsize = $orderVolume->getMinimalSize('EOS');