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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 expand_braces(patterns, flags):
 """Expand braces."""


    if flags & BRACE:
        for p in ([patterns] if isinstance(patterns, (str, bytes)) else patterns):
            try:
                yield from bracex.iexpand(p, keep_escapes=True)
            except Exception:  # pragma: no cover
                # We will probably never hit this as `bracex`
                # doesn't throw any specific exceptions and
                # should normally always parse, but just in case.
                yield p
    else:
        for p in ([patterns] if isinstance(patterns, (str, bytes)) else patterns):
            yield p