@java.lang.Override
  public boolean hasPutMetadata() {
    return transformationCase_ == 8;
  }
<pre>
Updates object metadata. Allows updating fixed-key and custom metadata
and fixed-key metadata i.e. Cache-Control, Content-Disposition,
Content-Encoding, Content-Language, Content-Type, Custom-Time.
</pre>

<code>.google.cloud.storagebatchoperations.v1.PutMetadata put_metadata = 8;</code>

@return Whether the putMetadata field is set.
java-storagebatchoperations/proto-google-cloud-storagebatchoperations-v1/src/main/java/com/google/cloud/storagebatchoperations/v1/Job.java