private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.tpu.v2alpha1.AcceleratorType,
            com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder,
            com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder>
        getAcceleratorTypesFieldBuilder() {
      if (acceleratorTypesBuilder_ == null) {
        acceleratorTypesBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.tpu.v2alpha1.AcceleratorType,
                com.google.cloud.tpu.v2alpha1.AcceleratorType.Builder,
                com.google.cloud.tpu.v2alpha1.AcceleratorTypeOrBuilder>(
                acceleratorTypes_,
                ((bitField0_ & 0x00000001) != 0),
                getParentForChildren(),
                isClean());
        acceleratorTypes_ = null;
      }
      return acceleratorTypesBuilder_;
    }
<pre>
The listed nodes.
</pre>

<code>repeated .google.cloud.tpu.v2alpha1.AcceleratorType accelerator_types = 1;</code>
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListAcceleratorTypesResponse.java