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: SignalDesigner.m
    path of file: ./repos/Simscape-Battery-Electric-Vehicle-Model/Utility/SignalDesigner
    
    the code of the file until where you have to start completion: classdef SignalDesigner < handle
%% Signal Designer class implementation

% Copyright 2022 
    
function


function fig = plotDataPoints(sigObj, nvpairs)
%% Plots generated data points.

arguments
  sigObj (1,1) SignalDesigner

  % Debug=true shows intermediate points
  nvpairs.Debug (1,1) logical = false
end