<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>vega-hierarchy</artifactId>
  <version>2.1.2</version>
</dependency>

implementation 'org.webjars.npm:vega-hierarchy:2.1.2'

implementation("org.webjars.npm:vega-hierarchy:2.1.2")

libraryDependencies += "org.webjars.npm" % "vega-hierarchy" % "2.1.2"

@Grapes(
  @Grab(group='org.webjars.npm', module='vega-hierarchy', version='2.1.2')
)

<dependency org="org.webjars.npm" name="vega-hierarchy" rev="2.1.2" />

[org.webjars.npm/vega-hierarchy "2.1.2"]

'org.webjars.npm:vega-hierarchy:jar:2.1.2'