public com.google.cloud.tpu.v2alpha1.AccessConfig.Builder getAccessConfigBuilder() {
      bitField0_ |= 0x00000004;
      onChanged();
      return getAccessConfigFieldBuilder().getBuilder();
    }
<pre>
The access config for the TPU worker.
</pre>

<code>.google.cloud.tpu.v2alpha1.AccessConfig access_config = 5;</code>
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/NetworkEndpoint.java