code: public Observable<ServiceResponse<DeletedSasDefinitionBundle>> getDeletedSasDefinitionWithServiceResponseAsync(String vaultBaseUrl, String storageAccountName, String sasDefinitionName) {
          if (vaultBaseUrl == null) {
              throw new IllegalArgumentException("Parameter vaultBaseUrl is required and cannot be null.");
          }
          if (storageAccountName == null) {
              throw new IllegalArgumentException("Parameter storageAccountName is required and cannot be null.");
          }
          if (sasDefinitionName == null) {
              throw new IllegalArgumentException("Parameter sasDefinitionName is required and cannot be null.");
          }
          if (this.apiVersion() == null) {
              throw new IllegalArgumentException("Parameter this.apiVersion() is required and cannot be null.");
          }
          String parameterizedHost = Joiner.on(", ").join("{vaultBaseUrl}", vaultBaseUrl);
          return service.getDeletedSasDefinition(storageAccountName, sasDefinitionName, this.apiVersion(), this.acceptLanguage(), parameterizedHost, this.userAgent())
              .flatMap(new Func1<Response<ResponseBody>, Observable<ServiceResponse<DeletedSasDefinitionBundle>>>() {
                  @Override
                  public Observable<ServiceResponse<DeletedSasDefinitionBundle>> call(Response<ResponseBody> response) {
                      try {
                          ServiceResponse<DeletedSasDefinitionBundle> clientResponse = getDeletedSasDefinitionDelegate(response);
                          return Observable.just(clientResponse);
                      } catch (Throwable t) {
                          return Observable.error(t);
                      }
                  }
              });
      }
docs: Gets the specified deleted sas definition.
  The Get Deleted SAS Definition operation returns the specified deleted SAS definition along with its attributes. This operation requires the storage/getsas permission.
  
  @param vaultBaseUrl The vault name, for example https://myvault.vault.azure.net.
  @param storageAccountName The name of the storage account.
  @param sasDefinitionName The name of the SAS definition.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the DeletedSasDefinitionBundle object