docs: public void marshall(CreateGroupCertificateAuthorityRequest createGroupCertificateAuthorityRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (createGroupCertificateAuthorityRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(createGroupCertificateAuthorityRequest.getAmznClientToken(), AMZNCLIENTTOKEN_BINDING);
              protocolMarshaller.marshall(createGroupCertificateAuthorityRequest.getGroupId(), GROUPID_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }