'Adds a proxy to the pool.
:param object: The proxy to add to the pool.
:rtype: A unique identifier associated with the object.'

def put(self, object):

    with self.lock:
        id = (proto.PYTHON_PROXY_PREFIX + smart_decode(self.next_id))
        self.next_id += 1
        self.dict[id] = object
    return id
