customer = $customer; } public function create(string $email_part, string $domain, string $description = null): array { return $this->customer->server->request('Emails.add', [ 'loginname' => $this->customer->loginname, 'email_part' => $email_part, 'domain' => $domain, 'description' => $description, ]); } public function list(): array { return $this->customer->server->request('Emails.listing', [ 'loginname' => $this->customer->loginname, ]); } }