Variável indefinida em src/Api/Subscription.php linha 56

[MarcoNicolodi]

A variavel $filters é indefinida no método getByCustomer em src/Api/Subscription.php

trocar de

public function getByCustomer($customerId)
{
    $subscriptions = $this->adapter->get(sprintf('%s/customers/%s/subscriptions?%s', $this->endpoint, $customerId, http_build_query($filters)));

    $subscriptions = json_decode($subscriptions);

    $this->extractMeta($subscriptions);

    return array_map(function($subscription)
    {
        return new SubscriptionEntity($subscription);
    }, $subscriptions->data);
}

para

public function getByCustomer($customerId,$filters = [])
{
    $subscriptions = $this->adapter->get(sprintf('%s/customers/%s/subscriptions?%s', $this->endpoint, $customerId, http_build_query($filters)));

    $subscriptions = json_decode($subscriptions);

    $this->extractMeta($subscriptions);

    return array_map(function($subscription)
    {
        return new SubscriptionEntity($subscription);
    }, $subscriptions->data);
}