docs: public void marshall(UpdateDataSourceRequest updateDataSourceRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (updateDataSourceRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(updateDataSourceRequest.getApiId(), APIID_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getName(), NAME_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getType(), TYPE_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getServiceRoleArn(), SERVICEROLEARN_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getDynamodbConfig(), DYNAMODBCONFIG_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getLambdaConfig(), LAMBDACONFIG_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getElasticsearchConfig(), ELASTICSEARCHCONFIG_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getHttpConfig(), HTTPCONFIG_BINDING);
              protocolMarshaller.marshall(updateDataSourceRequest.getRelationalDatabaseConfig(), RELATIONALDATABASECONFIG_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }