<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>js-base64</artifactId>
  <version>3.7.7</version>
</dependency>

implementation 'org.webjars.npm:js-base64:3.7.7'

implementation("org.webjars.npm:js-base64:3.7.7")

libraryDependencies += "org.webjars.npm" % "js-base64" % "3.7.7"

@Grapes(
  @Grab(group='org.webjars.npm', module='js-base64', version='3.7.7')
)

<dependency org="org.webjars.npm" name="js-base64" rev="3.7.7" />

[org.webjars.npm/js-base64 "3.7.7"]

'org.webjars.npm:js-base64:jar:3.7.7'