def get_directory(DirectoryArn=None):
    """
    Retrieves metadata about a directory.
    See also: AWS API Documentation
    
    
    :example: response = client.get_directory(
        DirectoryArn='string'
    )
    
    
    :type DirectoryArn: string
    :param DirectoryArn: [REQUIRED]
            The ARN of the directory.
            

    :rtype: dict
    :return: {
        'Directory': {
            'Name': 'string',
            'DirectoryArn': 'string',
            'State': 'ENABLED'|'DISABLED'|'DELETED',
            'CreationDateTime': datetime(2015, 1, 1)
        }
    }
    
    
    """
    pass
