You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: opti.m
    path of file: ./repos/OPTI/@opti
    
    the code of the file until where you have to start completion: classdef opti < handle
%OPTI  Create an OPTI object for Linear, Quadratic & Nonlinea
    
function op = opti(varargin) 
            %OPTI Constructor
            if(~nargin)
                optiprob;
                fprintf('\n OPTION SETTING:\n');
                fprintf('         options: [ Problem Setup & Solving Options specified via optiset() ]\n');
                fprintf('          solver: [ Optimization Solver ]\n'); 
                return;
            end