def describe_event_topics(DirectoryId=None, TopicNames=None):
    """
    Obtains information about which SNS topics receive status messages from the specified directory.
    If no input parameters are provided, such as DirectoryId or TopicName, this request describes all of the associations in the account.
    See also: AWS API Documentation
    
    
    :example: response = client.describe_event_topics(
        DirectoryId='string',
        TopicNames=[
            'string',
        ]
    )
    
    
    :type DirectoryId: string
    :param DirectoryId: The Directory ID for which to get the list of associated SNS topics. If this member is null, associations for all Directory IDs are returned.

    :type TopicNames: list
    :param TopicNames: A list of SNS topic names for which to obtain the information. If this member is null, all associations for the specified Directory ID are returned.
            An empty list results in an InvalidParameterException being thrown.
            (string) --
            

    :rtype: dict
    :return: {
        'EventTopics': [
            {
                'DirectoryId': 'string',
                'TopicName': 'string',
                'TopicArn': 'string',
                'CreatedDateTime': datetime(2015, 1, 1),
                'Status': 'Registered'|'Topic not found'|'Failed'|'Deleted'
            },
        ]
    }
    
    
    """
    pass
