@java.lang.Override
    public boolean hasTransferManifest() {
      return ((bitField0_ & 0x00000004) != 0);
    }
<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>

@return Whether the transferManifest field is set.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java