<dependency>
  <groupId>org.json4s</groupId>
  <artifactId>json4s-ast_2.11</artifactId>
  <version>3.7.0-M9</version>
</dependency>

implementation 'org.json4s:json4s-ast_2.11:3.7.0-M9'

implementation("org.json4s:json4s-ast_2.11:3.7.0-M9")

libraryDependencies += "org.json4s" % "json4s-ast_2.11" % "3.7.0-M9"

@Grapes(
  @Grab(group='org.json4s', module='json4s-ast_2.11', version='3.7.0-M9')
)

<dependency org="org.json4s" name="json4s-ast_2.11" rev="3.7.0-M9" />

[org.json4s/json4s-ast_2.11 "3.7.0-M9"]

'org.json4s:json4s-ast_2.11:jar:3.7.0-M9'