public Builder putLabels(java.lang.String key, java.lang.String value) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      if (value == null) {
        throw new NullPointerException("map value");
      }
      internalGetMutableLabels().getMutableMap().put(key, value);
      bitField0_ |= 0x00000200;
      return this;
    }
<pre>
A map of labels to associate with the VM.
</pre>

<code>map&lt;string, string&gt; labels = 10;</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/ComputeEngineTargetDefaults.java