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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 expire(self, key, timeout):
 """Set a timeout on key. After the timeout has expired, the key will automatically be deleted. A key with an associated timeout is often said to be volatile in Redis terminology. The timeout is cleared only when the key is removed using the :meth:`~tredis.RedisClient.delete` method or overwritten using the :meth:`~tredis.RedisClient.set` or :meth:`~tredis.RedisClient.getset` methods. This means that all the operations that conceptually alter the value stored at the key without replacing it with a new one will leave the timeout untouched. For instance, incrementing the value of a key with :meth:`~tredis.RedisClient.incr`, pushing a new value into a list with :meth:`~tredis.RedisClient.lpush`, or altering the field value of a hash with :meth:`~tredis.RedisClient.hset` are all operations that will leave the timeout untouched. The timeout can also be cleared, turning the key back into a persistent key, using the :meth:`~tredis.RedisClient.persist` method. If a key is renamed with :meth:`~tredis.RedisClient.rename`, the associated time to live is transferred to the new key name. If a key is overwritten by :meth:`~tredis.RedisClient.rename`, like in the case of an existing key ``Key_A`` that is overwritten by a call like ``client.rename(Key_B, Key_A)`` it does not matter if the original ``Key_A`` had a timeout associated or not, the new key ``Key_A`` will inherit all the characteristics of ``Key_B``. .. note:: **Time complexity**: ``O(1)`` :param key: The key to set an expiration for :type key: :class:`str`, :class:`bytes` :param int timeout: The number of seconds to set the timeout to :rtype: bool :raises: :exc:`~tredis.exceptions.RedisError` """

        return self._execute(
            [b'EXPIRE', key, ascii(timeout).encode('ascii')], 1)