<dependency>
<groupId>org.opendaylight.yangtools.model</groupId>
<artifactId>yang-ext</artifactId>
<version>2013.09.07.3</version>
</dependency>
@Grapes(
@Grab(group='org.opendaylight.yangtools.model', module='yang-ext', version='2013.09.07.3')
)
<parent> <groupId>org.opendaylight.yangtools.model</groupId> <artifactId>model-parent</artifactId> <version>0.6.1</version> </parent>