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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 require_oauth_scopes(*scopes):
 r"""Decorator to require a list of OAuth scopes. Decorator must be preceded by a ``require_api_auth()`` decorator. Note, API key authentication is bypassing this check. :param \*scopes: List of scopes required. """

    required_scopes = set(scopes)

    def wrapper(f):
        @wraps(f)
        def decorated(*args, **kwargs):
            # Variable requests.oauth is only defined for oauth requests (see
            # require_api_auth() above).
            if hasattr(request, 'oauth') and request.oauth is not None:
                token_scopes = set(request.oauth.access_token.scopes)
                if not required_scopes.issubset(token_scopes):
                    abort(403)
            return f(*args, **kwargs)
        return decorated
    return wrapper