def list_rules_packages(nextToken=None, maxResults=None):
    """
    Lists all available Amazon Inspector rules packages.
    See also: AWS API Documentation
    
    Examples
    Lists all available Amazon Inspector rules packages.
    Expected Output:
    
    :example: response = client.list_rules_packages(
        nextToken='string',
        maxResults=123
    )
    
    
    :type nextToken: string
    :param nextToken: You can use this parameter when paginating results. Set the value of this parameter to null on your first call to the ListRulesPackages action. Subsequent calls to the action fill nextToken in the request with the value of NextToken from the previous response to continue listing data.

    :type maxResults: integer
    :param maxResults: You can use this parameter to indicate the maximum number of items you want in the response. The default value is 10. The maximum value is 500.

    :rtype: dict
    :return: {
        'rulesPackageArns': [
            'string',
        ],
        'nextToken': 'string'
    }
    
    
    :returns: 
    (string) --
    
    """
    pass
