How to use the awsume.awsumepy.lib.profile.get_region function in awsume

def get_assume_role_credentials_mfa_required(config: dict, arguments: argparse.Namespace, profiles: dict, target_profile: dict, role_duration: int):
    region = profile_lib.get_region(profiles, arguments, config)
    mfa_serial = profile_lib.get_mfa_serial(profiles, arguments.target_profile_name)
    external_id = profile_lib.get_external_id(arguments, target_profile)

    source_profile = profile_lib.get_source_profile(profiles, arguments.target_profile_name)
    if source_profile:
        logger.debug('Calling get_session_token to assume role with')
        source_credentials = profile_lib.profile_to_credentials(source_profile)
        source_session = aws_lib.get_session_token(
            source_credentials,
            region=region,
            mfa_serial=mfa_serial,
            mfa_token=arguments.mfa_token,
            ignore_cache=arguments.force_refresh,
            duration_seconds=config.get('debug', {}).get('session_token_duration'),
        )
    elif target_profile.get('credential_source') == 'Environment':

def assume_role_from_cli(config: dict, arguments: dict, profiles: dict):
    region = profile_lib.get_region(profiles, arguments, config, ignore_config=True, ignore_default=True)
    logger.info('Using role_arn from the CLI')
    role_duration = arguments.role_duration or int(config.get('role-duration', 0))
    session_name = arguments.session_name or 'awsume-cli-role'
    logger.debug('Session name: {}'.format(session_name))
    if not arguments.source_profile:
        logger.debug('Using current credentials to assume role')
        role_session = aws_lib.assume_role({}, arguments.role_arn, session_name, region=region, external_id=arguments.external_id, role_duration=role_duration)
    else:
        logger.debug('Using the source_profile from the cli to call assume_role')
        source_profile = profiles.get(arguments.source_profile)
        if not source_profile:
            raise exceptions.ProfileNotFoundError(profile_name=arguments.source_profile)
        source_credentials = profile_lib.profile_to_credentials(source_profile)
        mfa_serial = source_profile.get('mfa_serial')
        if role_duration:
            logger.debug('Using custom role duration')

def get_assume_role_credentials_mfa_required_large_custom_duration(config: dict, arguments: argparse.Namespace, profiles: dict, target_profile: dict, role_duration: int):
    if arguments.auto_refresh and role_duration > 3600:
        raise exceptions.ValidationException('Cannot use autoawsume with custom role duration of more than 1 hour')
    logger.debug('Skipping the get_session_token call, temp creds cannot be used for custom role duration')

    region = profile_lib.get_region(profiles, arguments, config)
    mfa_serial = profile_lib.get_mfa_serial(profiles, arguments.target_profile_name)
    external_id = profile_lib.get_external_id(arguments, target_profile)
    source_profile = profile_lib.get_source_profile(profiles, arguments.target_profile_name)
    source_session = profile_lib.profile_to_credentials(source_profile)

    role_session = aws_lib.assume_role(
        source_session,
        target_profile.get('role_arn'),
        arguments.session_name or arguments.target_profile_name,
        region=region,
        external_id=external_id,
        role_duration=role_duration,
        mfa_serial=mfa_serial,
        mfa_token=arguments.mfa_token,
    )
    return role_session

def get_credentials_no_mfa(config: dict, arguments: argparse.Namespace, profiles: dict, target_profile: dict):
    region = profile_lib.get_region(profiles, arguments, config)
    return_session = profile_lib.profile_to_credentials(target_profile)
    return_session['Region'] = region
    return return_session

def get_session_token_credentials(config: dict, arguments: argparse.Namespace, profiles: dict, target_profile: dict):
    region = profile_lib.get_region(profiles, arguments, config)
    mfa_serial = profile_lib.get_mfa_serial(profiles, arguments.target_profile_name)
    source_credentials = profile_lib.profile_to_credentials(target_profile)
    user_session = aws_lib.get_session_token(
        source_credentials,
        region=region,
        mfa_serial=mfa_serial,
        mfa_token=arguments.mfa_token,
        ignore_cache=arguments.force_refresh,
        duration_seconds=config.get('debug', {}).get('session_token_duration'),
    )
    return user_session