<dependency>
  <groupId>com.softwaremill.sttp.client4</groupId>
  <artifactId>armeria-backend_3</artifactId>
  <version>4.0.0-M2</version>
</dependency>

implementation 'com.softwaremill.sttp.client4:armeria-backend_3:4.0.0-M2'

implementation("com.softwaremill.sttp.client4:armeria-backend_3:4.0.0-M2")

libraryDependencies += "com.softwaremill.sttp.client4" % "armeria-backend_3" % "4.0.0-M2"

@Grapes(
  @Grab(group='com.softwaremill.sttp.client4', module='armeria-backend_3', version='4.0.0-M2')
)

<dependency org="com.softwaremill.sttp.client4" name="armeria-backend_3" rev="4.0.0-M2" />

[com.softwaremill.sttp.client4/armeria-backend_3 "4.0.0-M2"]

'com.softwaremill.sttp.client4:armeria-backend_3:jar:4.0.0-M2'