Latest version of com.google.appengine:appengine-api-labs
https://javadoc.io/doc/com.google.appengine/appengine-api-labs
Current version 1.9.88
https://javadoc.io/doc/com.google.appengine/appengine-api-labs/1.9.88
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.google.appengine/appengine-api-labs/1.9.88/package-list