def untag_resource(ResourceArn=None, TagKeys=None):
    """
    An API operation for removing tags from a resource.
    See also: AWS API Documentation
    
    
    :example: response = client.untag_resource(
        ResourceArn='string',
        TagKeys=[
            'string',
        ]
    )
    
    
    :type ResourceArn: string
    :param ResourceArn: [REQUIRED]
            The Amazon Resource Name (ARN) of the resource. Tagging is only supported for directories.
            

    :type TagKeys: list
    :param TagKeys: [REQUIRED]
            Keys of the tag that need to be removed from the resource.
            (string) --
            

    :rtype: dict
    :return: {}
    
    
    :returns: 
    (dict) --
    
    """
    pass
