code: @BetaApi(
        "The surface for long-running operations is not stable yet and may change in the future.")
    public final OperationFuture<DeleteGlossaryResponse, DeleteGlossaryMetadata> deleteGlossaryAsync(
        DeleteGlossaryRequest request) {
      return deleteGlossaryOperationCallable().futureCall(request);
    }
docs: Deletes a glossary, or cancels glossary construction if the glossary isn't created yet. Returns
  NOT_FOUND, if the glossary doesn't exist.
  
  <p>Sample code:
  
  <pre><code>
  try (TranslationServiceClient translationServiceClient = TranslationServiceClient.create()) {
  String formattedName = TranslationServiceClient.formatGlossaryName("[PROJECT]", "[LOCATION]", "[GLOSSARY]");
  DeleteGlossaryRequest request = DeleteGlossaryRequest.newBuilder()
  .setName(formattedName)
  .build();
  DeleteGlossaryResponse response = translationServiceClient.deleteGlossaryAsync(request).get();
  }
  </code></pre>
  
  @param request The request object containing all of the parameters for the API call.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails