<dependency>
  <groupId>com.softwaremill.sttp.model</groupId>
  <artifactId>core_2.13</artifactId>
  <version>1.3.1</version>
</dependency>

implementation 'com.softwaremill.sttp.model:core_2.13:1.3.1'

implementation("com.softwaremill.sttp.model:core_2.13:1.3.1")

libraryDependencies += "com.softwaremill.sttp.model" % "core_2.13" % "1.3.1"

@Grapes(
  @Grab(group='com.softwaremill.sttp.model', module='core_2.13', version='1.3.1')
)

<dependency org="com.softwaremill.sttp.model" name="core_2.13" rev="1.3.1" />

[com.softwaremill.sttp.model/core_2.13 "1.3.1"]

'com.softwaremill.sttp.model:core_2.13:jar:1.3.1'