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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 _match_real(filename, include, exclude, follow, symlinks):
 """Match real filename includes and excludes."""


    sep = '\\' if util.platform() == "windows" else '/'
    if isinstance(filename, bytes):
        sep = os.fsencode(sep)
    if not filename.endswith(sep) and os.path.isdir(filename):
        filename += sep

    matched = False
    for pattern in include:
        if _fs_match(pattern, filename, sep, follow, symlinks):
            matched = True
            break

    if matched:
        matched = True
        if exclude:
            for pattern in exclude:
                if _fs_match(pattern, filename, sep, follow, symlinks):
                    matched = False
                    break
    return matched