code: func (s *CertificatesService) ListCertificates(accountID, domainIdentifier string, options *ListOptions) (*certificatesResponse, error) {
  	path := versioned(certificatePath(accountID, domainIdentifier, 0))
  	certificatesResponse := &certificatesResponse{}
  
  	path, err := addURLQueryOptions(path, options)
  	if err != nil {
  		return nil, err
  	}
  
  	resp, err := s.client.get(path, certificatesResponse)
  	if err != nil {
  		return certificatesResponse, err
  	}
  
  	certificatesResponse.HttpResponse = resp
  	return certificatesResponse, nil
  }
docs: // ListCertificates lists the certificates for a domain in the account.
  //
  // See https://developer.dnsimple.com/v2/certificates#listCertificates