<dependency>
  <groupId>com.vaadin.external</groupId>
  <artifactId>gentyref</artifactId>
  <version>1.2.0.vaadin1</version>
</dependency>

implementation 'com.vaadin.external:gentyref:1.2.0.vaadin1'

implementation("com.vaadin.external:gentyref:1.2.0.vaadin1")

libraryDependencies += "com.vaadin.external" % "gentyref" % "1.2.0.vaadin1"

@Grapes(
  @Grab(group='com.vaadin.external', module='gentyref', version='1.2.0.vaadin1')
)

<dependency org="com.vaadin.external" name="gentyref" rev="1.2.0.vaadin1" />

[com.vaadin.external/gentyref "1.2.0.vaadin1"]

'com.vaadin.external:gentyref:jar:1.2.0.vaadin1'