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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_sender(f):
 """A decorator that protect emit view function is triggered by a trusted sender. Currently, Rio only support Basic Authorization. """

    @wraps(f)
    def decorator(*args, **kwargs):
        if not request.authorization:
            return jsonify({'message': 'unauthorized'}), 401

        username = request.authorization.username
        password = request.authorization.password

        if not validate_sender(username, password):
            return jsonify({'message': 'forbidden'}), 403

        return f(*args, **kwargs)
    return decorator