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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 set_locked_variable(self, key, access_key, value):
 """Set an already locked global variable :param key: the key of the global variable to be set :param access_key: the access key to the already locked global variable :param value: the new value of the global variable """

        return self.set_variable(key, value, per_reference=False, access_key=access_key)