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: TextHelper.m
    path of file: ./repos/MatGPT/helpers
    
    the code of the file until where you have to start completion: classdef TextHelper
    %TEXTHELPER Collection of static methods for text processing
    %   TextHelper has mul
    
function str = removeHTMLtags(str)
            % removeHTMLtags - removes all HTML tags from a string. This is
            % usefull because MATLAB's error messages often come with
            % hyperlinks. This function removes them.
            htmlTags = "<" + wildcardPattern + ">";
            str = erase(str,htmlTags);
        end