<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>immutable</artifactId>
  <version>4.0.0-rc.2</version>
</dependency>

implementation 'org.webjars.npm:immutable:4.0.0-rc.2'

implementation("org.webjars.npm:immutable:4.0.0-rc.2")

libraryDependencies += "org.webjars.npm" % "immutable" % "4.0.0-rc.2"

@Grapes(
  @Grab(group='org.webjars.npm', module='immutable', version='4.0.0-rc.2')
)

<dependency org="org.webjars.npm" name="immutable" rev="4.0.0-rc.2" />

[org.webjars.npm/immutable "4.0.0-rc.2"]

'org.webjars.npm:immutable:jar:4.0.0-rc.2'