code: public void marshall(DynamodbDataSourceConfig dynamodbDataSourceConfig, ProtocolMarshaller protocolMarshaller) {
  
          if (dynamodbDataSourceConfig == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(dynamodbDataSourceConfig.getTableName(), TABLENAME_BINDING);
              protocolMarshaller.marshall(dynamodbDataSourceConfig.getAwsRegion(), AWSREGION_BINDING);
              protocolMarshaller.marshall(dynamodbDataSourceConfig.getUseCallerCredentials(), USECALLERCREDENTIALS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.