code: public ServiceFuture<DomainSharedAccessKeysInner> regenerateKeyAsync(String resourceGroupName, String domainName, String keyName, final ServiceCallback<DomainSharedAccessKeysInner> serviceCallback) {
          return ServiceFuture.fromResponse(regenerateKeyWithServiceResponseAsync(resourceGroupName, domainName, keyName), serviceCallback);
      }
docs: Regenerate key for a domain.
  Regenerate a shared access key for a domain.
  
  @param resourceGroupName The name of the resource group within the user's subscription.
  @param domainName Name of the domain
  @param keyName Key name to regenerate key1 or key2
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object