@Override
    public DescribeNodegroupResult apply(DescribeNodegroupRequest describeNodegroupRequest) {
        return client.describeNodegroup(describeNodegroupRequest);
    }
Makes a call to the operation specified by the waiter by taking the corresponding request and returns the
corresponding result

@param describeNodegroupRequest
       Corresponding request for the operation
@return Corresponding result of the operation
aws-java-sdk-eks/src/main/java/com/amazonaws/services/eks/waiters/DescribeNodegroupFunction.java