human
Solve the following python programming problem given the following code:
def test_self_release(self) : 
    pool = Pool (url = 'ws://localhost:8182/', maxsize = 2, username = 'stephen', password = 'password', force_release = True, future_class = Future, loop = pool.loop) 
    @ trollius.coroutine 
    def go() : 
        self.assertEqual (len (pool.pool), 0) 
        c1 = (yield From (pool.acquire ())) 
        self.assertEqual (len (pool._acquired), 1) 
        stream = c1.send ('1 + 1') 
        resp = (yield From (stream.read ())) 
        self.assertEqual (len (pool.pool), 1) 
        self.assertEqual (len (pool._acquired), 0) 
self.loop.run_until_complete (go ()) 

    
    

    Fix the buggy line: pool = Pool (url = 'ws://localhost:8182/', maxsize = 2, username = 'stephen', password = 'password', force_release = True, future_class = Future, loop = pool.loop)
assistant
#Here is Python program to fix the buggy line: pool = Pool (url = 'ws://localhost:8182/', maxsize = 2, username = 'stephen', password = 'password', force_release = True, future_class = Future, loop = pool.

pool = Pool (url = 'ws://localhost:8182/', maxsize = 2, username = 'stephen', password = 'password', force_release = True, future_class = Future, loop = self.loop)