protected function getClient()
{
$this->output->writeln('<info>Loading account key pair...</info>');
$accountKeyPair = $this->getRepository()->loadAccountKeyPair();
/** @var SecureHttpClient $httpClient */
$httpClient = $this->getContainer()->get('http.client_factory')->createSecureHttpClient($accountKeyPair);
/** @var CertificateRequestSigner $csrSigner */
$csrSigner = $this->getContainer()->get('ssl.csr_signer');
return new AcmeClient($httpClient, $this->input->getOption('server'), $csrSigner);
}