def get_maintenance_window(WindowId=None):
    """
    Retrieves a Maintenance Window.
    See also: AWS API Documentation
    
    
    :example: response = client.get_maintenance_window(
        WindowId='string'
    )
    
    
    :type WindowId: string
    :param WindowId: [REQUIRED]
            The ID of the desired Maintenance Window.
            

    :rtype: dict
    :return: {
        'WindowId': 'string',
        'Name': 'string',
        'Schedule': 'string',
        'Duration': 123,
        'Cutoff': 123,
        'AllowUnassociatedTargets': True|False,
        'Enabled': True|False,
        'CreatedDate': datetime(2015, 1, 1),
        'ModifiedDate': datetime(2015, 1, 1)
    }
    
    
    """
    pass
