Removes a tag from an index, FAQ, or a data source.
See https://www.paws-r-sdk.com/docs/kendra_untag_resource/ for full documentation.
kendra_untag_resource(ResourceARN, TagKeys)
[required] The Amazon Resource Name (ARN) of the index, FAQ, or data source to remove the tag from.
[required] A list of tag keys to remove from the index, FAQ, or data source. If a tag key does not exist on the resource, it is ignored.