code: public Observable<Page<DeletedStorageAccountItem>> getDeletedStorageAccountsAsync(final String vaultBaseUrl) {
          return getDeletedStorageAccountsWithServiceResponseAsync(vaultBaseUrl)
              .map(new Func1<ServiceResponse<Page<DeletedStorageAccountItem>>, Page<DeletedStorageAccountItem>>() {
                  @Override
                  public Page<DeletedStorageAccountItem> call(ServiceResponse<Page<DeletedStorageAccountItem>> response) {
                      return response.body();
                  }
              });
      }
docs: Lists deleted storage accounts for the specified vault.
  The Get Deleted Storage Accounts operation returns the storage accounts that have been deleted for a vault enabled for soft-delete. This operation requires the storage/list permission.
  
  @param vaultBaseUrl The vault name, for example https://myvault.vault.azure.net.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;DeletedStorageAccountItem&gt; object