def METHOD_NAME(self):
    # Make one giant string of all the text for semi-efficient search
    combined_files = ""
    for dirname, dirnames, filenames in os.walk("interfaces"):
        for filename in filenames:
            # Only .tmpl and .htm(l) files
            if ".tmpl" in filename or ".htm" in filename:
                with open(os.path.join(dirname, filename), "r") as myfile:
                    data = myfile.read().replace("\n", "")
                combined_files = combined_files + data
    # Items to ignore, we might use them in the future!
    to_ignore = ("sch-", "hours", "removeNZB", "purgeNZBs", "purgeQueue", "menu-home")
    # Search for translation function
    not_found = []
    for key in SKIN_TEXT:
        if "T('" + key not in combined_files and 'T("' + key not in combined_files:
            if not key.startswith(to_ignore):
                not_found.append(key)
    # If anything shows up, the translation string is no longer used and should be removed!
    assert not not_found