AddTagsToResourceResponse

Adds one or more tags to the specified resource.

To add tags to resource

var client = new AmazonStorageGatewayClient();
var response = client.AddTagsToResource(new AddTagsToResourceRequest 
{
    ResourceARN = "arn:aws:storagegateway:us-east-1:111122223333:gateway/sgw-11A2222B",
    Tags = new List<Tag> {
        new Tag {
            Key = "Dev Gatgeway Region",
            Value = "East Coast"
        }
    }
});

string resourceARN = response.ResourceARN;