UntagResourceResponse

The following example removes tags from a KMS key.

To remove tags from a KMS key

var client = new AmazonKeyManagementServiceClient();
var response = client.UntagResource(new UntagResourceRequest 
{
    KeyId = "1234abcd-12ab-34cd-56ef-1234567890ab", // The identifier of the KMS key whose tags you are removing.
    TagKeys = new List<string> {
        "Purpose",
        "CostCenter"
    } // A list of tag keys. Provide only the tag keys, not the tag values.
});