<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>bootstrap</artifactId>
  <version>5.2.3</version>
</dependency>

implementation 'org.webjars.npm:bootstrap:5.2.3'

implementation("org.webjars.npm:bootstrap:5.2.3")

libraryDependencies += "org.webjars.npm" % "bootstrap" % "5.2.3"

@Grapes(
  @Grab(group='org.webjars.npm', module='bootstrap', version='5.2.3')
)

<dependency org="org.webjars.npm" name="bootstrap" rev="5.2.3" />

[org.webjars.npm/bootstrap "5.2.3"]

'org.webjars.npm:bootstrap:jar:5.2.3'