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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(self, key, value, timeout=None):
 """ Cache the given ``value`` in the specified ``key``. If no timeout is specified, the default timeout will be used. """

        key = self.make_key(key)
        if timeout is None:
            timeout = self.default_timeout

        if self.debug:
            return True

        pickled_value = pickle.dumps(value)
        self.metrics['writes'] += 1
        if timeout:
            return self.database.setex(key, int(timeout), pickled_value)
        else:
            return self.database.set(key, pickled_value)