<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>rx</artifactId>
  <version>4.0.8</version>
</dependency>

implementation 'org.webjars.npm:rx:4.0.8'

implementation("org.webjars.npm:rx:4.0.8")

libraryDependencies += "org.webjars.npm" % "rx" % "4.0.8"

@Grapes(
  @Grab(group='org.webjars.npm', module='rx', version='4.0.8')
)

<dependency org="org.webjars.npm" name="rx" rev="4.0.8" />

[org.webjars.npm/rx "4.0.8"]

'org.webjars.npm:rx:jar:4.0.8'