Latest version of com.google.api.grpc:grpc-google-cloud-spanner-admin-instance-v1
https://javadoc.io/doc/com.google.api.grpc/grpc-google-cloud-spanner-admin-instance-v1
Current version 6.117.0
https://javadoc.io/doc/com.google.api.grpc/grpc-google-cloud-spanner-admin-instance-v1/6.117.0
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.google.api.grpc/grpc-google-cloud-spanner-admin-instance-v1/6.117.0/package-list