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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 pygments_required(func):
 """Raise ImportError if pygments is not installed."""

    def wrapper(*args, **kwargs):
        if not HAS_PYGMENTS:  # pragma: no cover
            raise ImportError(
                "Please install 'pygments' library to use syntax_color.")
        rv = func(*args, **kwargs)
        return rv
    return wrapper