@java.lang.Override
      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
          internalGetFieldAccessorTable() {
        return com.google.storagetransfer.v1.proto.TransferTypes
            .internal_static_google_storagetransfer_v1_ReplicationSpec_fieldAccessorTable
            .ensureFieldAccessorsInitialized(
                com.google.storagetransfer.v1.proto.TransferTypes.ReplicationSpec.class,
                com.google.storagetransfer.v1.proto.TransferTypes.ReplicationSpec.Builder.class);
      }
<pre>
Specifies the configuration for a cross-bucket replication job. Cross-bucket
replication copies new or updated objects from a source Cloud Storage bucket
to a destination Cloud Storage bucket. Existing objects in the source bucket
are not copied by a new cross-bucket replication job.
</pre>

Protobuf type {@code google.storagetransfer.v1.ReplicationSpec}
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java