private void ensureAcceleratorConfigsIsMutable() {
      if (!((bitField0_ & 0x00000004) != 0)) {
        acceleratorConfigs_ =
            new java.util.ArrayList<com.google.cloud.tpu.v2.AcceleratorConfig>(acceleratorConfigs_);
        bitField0_ |= 0x00000004;
      }
    }
<pre>
The accelerator type.
</pre>

<code>string type = 2;</code>

@param value The bytes for type to set.
@return This builder for chaining.
java-tpu/proto-google-cloud-tpu-v2/src/main/java/com/google/cloud/tpu/v2/AcceleratorType.java