public static Builder newBuilder() {
    return DEFAULT_INSTANCE.toBuilder();
  }
<pre>
Sort results.
</pre>

<code>string order_by = 6;</code>

@return The bytes for orderBy.
java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/ListAcceleratorTypesRequest.java