def provider_parser(subparser):
    """Configure provider parser for DNS Simple"""
    subparser.add_argument('--auth-token', help=
        'specify api token for authentication')
    subparser.add_argument('--auth-username', help=
        'specify email address for authentication')
    subparser.add_argument('--auth-password', help=
        'specify password for authentication')
    subparser.add_argument('--auth-2fa', help=
        'specify two-factor auth token (OTP) to use with email/password authentication'
        )
