<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>material__density</artifactId>
  <version>4.0.0-canary.1</version>
</dependency>

implementation 'org.webjars.npm:material__density:4.0.0-canary.1'

implementation("org.webjars.npm:material__density:4.0.0-canary.1")

libraryDependencies += "org.webjars.npm" % "material__density" % "4.0.0-canary.1"

@Grapes(
  @Grab(group='org.webjars.npm', module='material__density', version='4.0.0-canary.1')
)

<dependency org="org.webjars.npm" name="material__density" rev="4.0.0-canary.1" />

[org.webjars.npm/material__density "4.0.0-canary.1"]

'org.webjars.npm:material__density:jar:4.0.0-canary.1'