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: selftest_yamlmatlab.m
    path of file: ./repos/d2d/arFramework3/ThirdParty/YAMLMatlab/Tests
    
    the code of the file until where you have to start completion: function  selftest_yamlmatlab(varargin)
% This function tests consistency of YAMLMatlab, by default, the results
% are stored in selftest_report.html in current work 
    
function str = getHTMLHeader()
    str = [ '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"   "http://www.w3.org/TR/html4/strict.dtd">' ... 
        '<HTML> ' ... 
        '<HEAD>'... 
        '<TITLE>::SELFTEST REPORT::</TITLE><STYLE> H2{color:blue} #MainTest{border: 1px blue solid;} h3,h4,h5,h6 {display: inline;}     </STYLE>'... 
        '</HEAD><BODY style="font-family:Arial, helvetica">'];
end