<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def __get_supported_file_types_string(self):
 """ Returns the supported file types dialog string. """


        languages = ["All Files (*)"]
        for language in self.__languages_model.languages:
            languages.append("{0} Files ({1})".format(language.name,
                                                      " ".join(language.extensions.split("|")).replace("\\", "*")))
        return ";;".join(languages)