<dependency>
<groupId>org.webjars.bowergithub.polymerelements</groupId>
<artifactId>iron-input</artifactId>
<version>2.1.2</version>
</dependency>
@Grapes(
@Grab(group='org.webjars.bowergithub.polymerelements', module='iron-input', version='2.1.2')
)
<dependency org="org.webjars.bowergithub.polymerelements" name="iron-input" rev="2.1.2" />