<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>lit-element</artifactId>
  <version>3.0.0-pre.4</version>
</dependency>

implementation 'org.webjars.npm:lit-element:3.0.0-pre.4'

implementation("org.webjars.npm:lit-element:3.0.0-pre.4")

libraryDependencies += "org.webjars.npm" % "lit-element" % "3.0.0-pre.4"

@Grapes(
  @Grab(group='org.webjars.npm', module='lit-element', version='3.0.0-pre.4')
)

<dependency org="org.webjars.npm" name="lit-element" rev="3.0.0-pre.4" />

[org.webjars.npm/lit-element "3.0.0-pre.4"]

'org.webjars.npm:lit-element:jar:3.0.0-pre.4'