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: ComplexAngularCentralGaussianTest.m
    path of file: ./repos/libDirectional/lib/tests/distributions
    
    the code of the file until where you have to start completion: classdef ComplexAngularCentralGaussianTest < matlab.unittest.TestCase
    properties
     
    
function createSampling(tc)
            % Define mean shape (different ideas)            
            C = diag([3 2 1]);
            C = 1/2*(C + C');
            tc.D = 3;
            
            % Define concentration parameter
            tc.N = 5000;
            
            tc.cAG = ComplexAngularCentralGaussian(C);
            
            % Sampling
            tc.Z = tc.cAG.sample(tc.N);        
        end