@Override
    public DescribeFunctionResult describeFunction(DescribeFunctionRequest request) {
        request = beforeClientExecution(request);
        return executeDescribeFunction(request);
    }
<p>
Gets configuration information and metadata about a CloudFront function, but not the function's code. To get a
function's code, use <code>GetFunction</code>.
</p>
<p>
To get configuration information and metadata about a function, you must provide the function's name and stage.
To get these values, you can use <code>ListFunctions</code>.
</p>

@param describeFunctionRequest
@return Result of the DescribeFunction operation returned by the service.
@throws NoSuchFunctionExistsException
        The function does not exist.
@throws UnsupportedOperationException
        This operation is not supported in this region.
@sample AmazonCloudFront.DescribeFunction
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/cloudfront-2020-05-31/DescribeFunction" target="_top">AWS
     API Documentation</a>
aws-java-sdk-cloudfront/src/main/java/com/amazonaws/services/cloudfront/AmazonCloudFrontClient.java