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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def translate_latex2unicode(text, kb_file=None):
 """Translate latex text to unicode. This function will take given text, presumably containing LaTeX symbols, and attempts to translate it to Unicode using the given or default KB translation table located under CFG_ETCDIR/bibconvert/KB/latex-to-unicode.kb. The translated Unicode string will then be returned. If the translation table and compiled regular expression object is not previously generated in the current session, they will be. :param text: a text presumably containing LaTeX symbols. :type text: string :param kb_file: full path to file containing latex2unicode translations. Defaults to CFG_ETCDIR/bibconvert/KB/latex-to-unicode.kb :type kb_file: string :return: Unicode representation of translated text :rtype: unicode """

    if kb_file is None:
        kb_file = get_kb_filename()
    # First decode input text to Unicode
    try:
        text = decode_to_unicode(text)
    except UnicodeDecodeError:
        text = unicode(wash_for_utf8(text))
    # Load translation table, if required
    if CFG_LATEX_UNICODE_TRANSLATION_CONST == {}:
        _load_latex2unicode_constants(kb_file)
    # Find all matches and replace text
    for match in CFG_LATEX_UNICODE_TRANSLATION_CONST['regexp_obj'] \
            .finditer(text):
        # If LaTeX style markers {, } and $ are before or after the
        # matching text, it will replace those as well
        text = re.sub("[\{\$]?%s[\}\$]?" % (re.escape(match.group()),),
                      CFG_LATEX_UNICODE_TRANSLATION_CONST[
                          'table'][match.group()],
                      text)
    # Return Unicode representation of translated text
    return text