<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>ng-bootstrap__ng-bootstrap</artifactId>
  <version>1.0.0-alpha.2</version>
</dependency>

implementation 'org.webjars.npm:ng-bootstrap__ng-bootstrap:1.0.0-alpha.2'

implementation("org.webjars.npm:ng-bootstrap__ng-bootstrap:1.0.0-alpha.2")

libraryDependencies += "org.webjars.npm" % "ng-bootstrap__ng-bootstrap" % "1.0.0-alpha.2"

@Grapes(
  @Grab(group='org.webjars.npm', module='ng-bootstrap__ng-bootstrap', version='1.0.0-alpha.2')
)

<dependency org="org.webjars.npm" name="ng-bootstrap__ng-bootstrap" rev="1.0.0-alpha.2" />

[org.webjars.npm/ng-bootstrap__ng-bootstrap "1.0.0-alpha.2"]

'org.webjars.npm:ng-bootstrap__ng-bootstrap:jar:1.0.0-alpha.2'