<dependency>
  <groupId>org.zkoss.zk</groupId>
  <artifactId>zml</artifactId>
  <version>3.0.0-RC</version>
</dependency>

implementation 'org.zkoss.zk:zml:3.0.0-RC'

implementation("org.zkoss.zk:zml:3.0.0-RC")

libraryDependencies += "org.zkoss.zk" % "zml" % "3.0.0-RC"

@Grapes(
  @Grab(group='org.zkoss.zk', module='zml', version='3.0.0-RC')
)

<dependency org="org.zkoss.zk" name="zml" rev="3.0.0-RC" />

[org.zkoss.zk/zml "3.0.0-RC"]

'org.zkoss.zk:zml:jar:3.0.0-RC'