public final int getNumber() {
    if (this == UNRECOGNIZED) {
      throw new java.lang.IllegalArgumentException(
          "Can't get the number of an unknown enum value.");
    }
    return value;
  }
<pre>
The operation request was successfully canceled.
</pre>

<code>OPERATION_STATE_CANCELLED = 5;</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/OperationState.java