<dependency>
  <groupId>org.codelibs.elasticsearch.module</groupId>
  <artifactId>rank-eval</artifactId>
  <version>6.8.1</version>
</dependency>

implementation 'org.codelibs.elasticsearch.module:rank-eval:6.8.1'

implementation("org.codelibs.elasticsearch.module:rank-eval:6.8.1")

libraryDependencies += "org.codelibs.elasticsearch.module" % "rank-eval" % "6.8.1"

@Grapes(
  @Grab(group='org.codelibs.elasticsearch.module', module='rank-eval', version='6.8.1')
)

<dependency org="org.codelibs.elasticsearch.module" name="rank-eval" rev="6.8.1" />

[org.codelibs.elasticsearch.module/rank-eval "6.8.1"]

'org.codelibs.elasticsearch.module:rank-eval:jar:6.8.1'