@Override
    public UntagResourceResult untagResource(UntagResourceRequest request) {
        request = beforeClientExecution(request);
        return executeUntagResource(request);
    }
<p>
Remove a tag from a Step Functions resource
</p>

@param untagResourceRequest
@return Result of the UntagResource operation returned by the service.
@throws InvalidArnException
        The provided Amazon Resource Name (ARN) is not valid.
@throws ResourceNotFoundException
        Could not find the referenced resource.
@sample AWSStepFunctions.UntagResource
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/states-2016-11-23/UntagResource" target="_top">AWS API
     Documentation</a>
aws-java-sdk-stepfunctions/src/main/java/com/amazonaws/services/stepfunctions/AWSStepFunctionsClient.java