<dependency>
  <groupId>com.squareup.retrofit2</groupId>
  <artifactId>adapter-guava</artifactId>
  <version>2.11.0</version>
</dependency>

implementation 'com.squareup.retrofit2:adapter-guava:2.11.0'

implementation("com.squareup.retrofit2:adapter-guava:2.11.0")

libraryDependencies += "com.squareup.retrofit2" % "adapter-guava" % "2.11.0"

@Grapes(
  @Grab(group='com.squareup.retrofit2', module='adapter-guava', version='2.11.0')
)

<dependency org="com.squareup.retrofit2" name="adapter-guava" rev="2.11.0" />

[com.squareup.retrofit2/adapter-guava "2.11.0"]

'com.squareup.retrofit2:adapter-guava:jar:2.11.0'