public Builder clearAcceleratorType() {
      acceleratorType_ = getDefaultInstance().getAcceleratorType();
      bitField0_ = (bitField0_ & ~0x00000004);
      onChanged();
      return this;
    }
<pre>
Required. The type of hardware accelerators associated with this node.
</pre>

<code>string accelerator_type = 5 [(.google.api.field_behavior) = REQUIRED];</code>

@return This builder for chaining.
java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java