libraryDependencies += "com.theoryinpractise" % "halbuilder-core" % "2.0.1"
From googled example.
It seems it works:
scala> import com.theoryinpractise.halbuilder._
import com.theoryinpractise.halbuilder._
It's a correct location according to pom.xml:
<groupId>com.theoryinpractise</groupId>
<artifactId>halbuilder-scala</artifactId>
Disclaimer: I've never used it.