public Builder clearNetwork() {
      network_ = getDefaultInstance().getNetwork();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
<pre>
The name of the network for the TPU node. It must be a preexisting Google
Compute Engine network. If none is provided, "default" will be used.
</pre>

<code>string network = 1;</code>

@return This builder for chaining.
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/NetworkConfig.java