code: public void marshall(GlobalSecondaryIndexDescription globalSecondaryIndexDescription, ProtocolMarshaller protocolMarshaller) {
  
          if (globalSecondaryIndexDescription == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getIndexName(), INDEXNAME_BINDING);
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getKeySchema(), KEYSCHEMA_BINDING);
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getProjection(), PROJECTION_BINDING);
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getIndexStatus(), INDEXSTATUS_BINDING);
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getBackfilling(), BACKFILLING_BINDING);
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getProvisionedThroughput(), PROVISIONEDTHROUGHPUT_BINDING);
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getIndexSizeBytes(), INDEXSIZEBYTES_BINDING);
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getItemCount(), ITEMCOUNT_BINDING);
              protocolMarshaller.marshall(globalSecondaryIndexDescription.getIndexArn(), INDEXARN_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.