<dependency>
  <groupId>com.gu.etag-caching</groupId>
  <artifactId>core_2.12</artifactId>
  <version>2.0.23</version>
</dependency>

implementation 'com.gu.etag-caching:core_2.12:2.0.23'

implementation("com.gu.etag-caching:core_2.12:2.0.23")

libraryDependencies += "com.gu.etag-caching" % "core_2.12" % "2.0.23"

@Grapes(
  @Grab(group='com.gu.etag-caching', module='core_2.12', version='2.0.23')
)

<dependency org="com.gu.etag-caching" name="core_2.12" rev="2.0.23" />

[com.gu.etag-caching/core_2.12 "2.0.23"]

'com.gu.etag-caching:core_2.12:jar:2.0.23'