As a plugin developer you can use this plugin as dependency of your plugin by adding a dependency tag to your POM.
To add the latest version of this plugin as a maven dependency, use the following:
<dependency>
<groupId>com.inkysea.vmware.vra</groupId>
<artifactId>vmware-vrealize-automation-plugin</artifactId>
<version>1.2.3</version>
</dependency>