@java.lang.Override
  public java.lang.String getContentDisposition() {
    java.lang.Object ref = contentDisposition_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      contentDisposition_ = s;
      return s;
    }
  }
<pre>
Optional. Updates objects Content-Disposition fixed metadata. Unset values
will be ignored. Set empty values to clear the metadata. Refer
https://cloud.google.com/storage/docs/metadata#content-disposition for
additional documentation.
</pre>

<code>optional string content_disposition = 1 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The contentDisposition.
java-storagebatchoperations/proto-google-cloud-storagebatchoperations-v1/src/main/java/com/google/cloud/storagebatchoperations/v1/PutMetadata.java