code: def create(gandi, private_key, certificate, certificate_id):
      
      if not certificate and not certificate_id:
          gandi.echo('One of --certificate or --certificate-id is needed.')
          return
      if certificate and certificate_id:
          gandi.echo('Only one of --certificate or --certificate-id is needed.')
  
      if os.path.isfile(private_key):
          with open(private_key) as fhandle:
              private_key = fhandle.read()
  
      if certificate:
          if os.path.isfile(certificate):
              with open(certificate) as fhandle:
                  certificate = fhandle.read()
      else:
          cert = gandi.certificate.info(certificate_id)
          certificate = gandi.certificate.pretty_format_cert(cert)
  
      result = gandi.hostedcert.create(private_key, certificate)
  
      output_keys = ['id', 'subject', 'date_created', 'date_expire',
                     'fqdns', 'vhosts']
  
      output_hostedcert(gandi, result, output_keys)
  
      return result
docs: Create a new hosted certificate.