public function list(int $offset = 0, int $limit = self::MAX_ITEMS_PER_REQUEST, array $fields = []): array
    {
        /** @var Contact[] $contacts */
        $contacts = [];
        $response = $this->client->get($this->prepareUrlForKey('get-contacts'), [
            '_skip' => $offset,
            '_limit' => $limit,
            '_fields' => $fields,
        ]);

        $responseData = $response->getDecodedBody();

        foreach ($responseData['data'] as $contact) {
            $contacts[] = new Contact($contact);
        }

        return $contacts;
    }