<dependency>
  <groupId>excalibur-event</groupId>
  <artifactId>excalibur-event-api</artifactId>
  <version>2.1</version>
</dependency>

implementation 'excalibur-event:excalibur-event-api:2.1'

implementation("excalibur-event:excalibur-event-api:2.1")

libraryDependencies += "excalibur-event" % "excalibur-event-api" % "2.1"

@Grapes(
  @Grab(group='excalibur-event', module='excalibur-event-api', version='2.1')
)

<dependency org="excalibur-event" name="excalibur-event-api" rev="2.1" />

[excalibur-event/excalibur-event-api "2.1"]

'excalibur-event:excalibur-event-api:jar:2.1'