def remove_verbatim_cr_lf_tab_chars(s):
    '\n    Return a string replacing by a space any verbatim but escaped line endings\n    and tabs (such as a literal \n or \r \t).\n    '
    if not s:
        return s
    return s.replace('\\r', ' ').replace('\\n', ' ').replace('\\t', ' ')
