public Builder setTransferManifest(
          com.google.storagetransfer.v1.proto.TransferTypes.TransferManifest.Builder
              builderForValue) {
        if (transferManifestBuilder_ == null) {
          transferManifest_ = builderForValue.build();
        } else {
          transferManifestBuilder_.setMessage(builderForValue.build());
        }
        bitField0_ |= 0x00001000;
        onChanged();
        return this;
      }
<pre>
A manifest file provides a list of objects to be transferred from the data
source. This field points to the location of the manifest file.
Otherwise, the entire source bucket is used. ObjectConditions still apply.
</pre>

<code>.google.storagetransfer.v1.TransferManifest transfer_manifest = 15;</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java