code: public ServiceFuture<TokenInformationInner> getAsync(String vaultName, String resourceGroupName, final ServiceCallback<TokenInformationInner> serviceCallback) {
          return ServiceFuture.fromResponse(getWithServiceResponseAsync(vaultName, resourceGroupName), serviceCallback);
      }
docs: Get the security PIN.
  
  @param vaultName The name of the recovery services vault.
  @param resourceGroupName The name of the resource group where the recovery services vault is present.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object