<dependency>
  <groupId>com.lihaoyi</groupId>
  <artifactId>upack_2.12</artifactId>
  <version>4.0.0-RC1</version>
</dependency>

implementation 'com.lihaoyi:upack_2.12:4.0.0-RC1'

implementation("com.lihaoyi:upack_2.12:4.0.0-RC1")

libraryDependencies += "com.lihaoyi" % "upack_2.12" % "4.0.0-RC1"

@Grapes(
  @Grab(group='com.lihaoyi', module='upack_2.12', version='4.0.0-RC1')
)

<dependency org="com.lihaoyi" name="upack_2.12" rev="4.0.0-RC1" />

[com.lihaoyi/upack_2.12 "4.0.0-RC1"]

'com.lihaoyi:upack_2.12:jar:4.0.0-RC1'