Latest version of com.hedera.hashgraph:hedera-protobuf-java-api
https://javadoc.io/doc/com.hedera.hashgraph/hedera-protobuf-java-api
Current version 0.13.0-alpha.2
https://javadoc.io/doc/com.hedera.hashgraph/hedera-protobuf-java-api/0.13.0-alpha.2
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.hedera.hashgraph/hedera-protobuf-java-api/0.13.0-alpha.2/package-list