<dependency>
  <groupId>com.android.tools.build</groupId>
  <artifactId>gradle</artifactId>
  <version>2.1.3</version>
</dependency>

implementation 'com.android.tools.build:gradle:2.1.3'

implementation("com.android.tools.build:gradle:2.1.3")

libraryDependencies += "com.android.tools.build" % "gradle" % "2.1.3"

@Grapes(
  @Grab(group='com.android.tools.build', module='gradle', version='2.1.3')
)

<dependency org="com.android.tools.build" name="gradle" rev="2.1.3" />

[com.android.tools.build/gradle "2.1.3"]

'com.android.tools.build:gradle:jar:2.1.3'