code: @Override
      public AssociateSoftwareTokenResult associateSoftwareToken(AssociateSoftwareTokenRequest request) {
          request = beforeClientExecution(request);
          return executeAssociateSoftwareToken(request);
      }
docs: <p>
  Returns a unique generated shared secret key code for the user account. The request takes an access token or a
  session string, but not both.
  </p>
  
  @param associateSoftwareTokenRequest
  @return Result of the AssociateSoftwareToken operation returned by the service.
  @throws InvalidParameterException
  This exception is thrown when the Amazon Cognito service encounters an invalid parameter.
  @throws NotAuthorizedException
  This exception is thrown when a user is not authorized.
  @throws ResourceNotFoundException
  This exception is thrown when the Amazon Cognito service cannot find the requested resource.
  @throws InternalErrorException
  This exception is thrown when Amazon Cognito encounters an internal error.
  @throws SoftwareTokenMFANotFoundException
  This exception is thrown when the software token TOTP multi-factor authentication (MFA) is not enabled
  for the user pool.
  @sample AWSCognitoIdentityProvider.AssociateSoftwareToken
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/cognito-idp-2016-04-18/AssociateSoftwareToken"
  target="_top">AWS API Documentation</a>