public Builder setS3Metadata(
          com.google.storagetransfer.v1.proto.TransferTypes.S3CompatibleMetadata.Builder
              builderForValue) {
        if (s3MetadataBuilder_ == null) {
          dataProvider_ = builderForValue.build();
          onChanged();
        } else {
          s3MetadataBuilder_.setMessage(builderForValue.build());
        }
        dataProviderCase_ = 4;
        return this;
      }
<pre>
A S3 compatible metadata.
</pre>

<code>.google.storagetransfer.v1.S3CompatibleMetadata s3_metadata = 4;</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java