@Override
    public IExportWriter startApiVersion(ApiVersionBean avb) {
        writeStartObject();
        try {
            avb = (ApiVersionBean) avb.clone();
            avb.setApi(null);
            jg.writeObjectField(ApiVersionBean.class.getSimpleName(), avb);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return this;
    }
@see io.apiman.manager.api.exportimport.write.IExportWriter#startApiVersion(io.apiman.manager.api.beans.apis.ApiVersionBean)
manager/api/export-import/src/main/java/io/apiman/manager/api/exportimport/json/JsonExportWriter.java