Get the URL where IAM users can use their login profile to sign in
        to this account's console.

        :type service: string
        :param service: Default service to go to in the console.

def get_signin_url(self, service='ec2'):
        """
        Get the URL where IAM users can use their login profile to sign in
        to this account's console.

        :type service: string
        :param service: Default service to go to in the console.
        """
        alias = self.get_account_alias()
        if not alias:
            raise Exception('No alias associated with this account.  Please use iam.create_account_alias() first.')

        return "https://%s.signin.aws.amazon.com/console/%s" % (alias, service)