human
Solve the following python programming problem given the following code:
@ mock.patch.object (fakelibvirt.virConnect, 'domainEventRegisterAny') 
@ mock.patch.object (host.Host, '_connect') 
def test_get_connection_concurrency(self, mock_conn, mock_event) : 
    def get_conn_currency(host) : 
        host.get_connection ().getLibVersion () 
def connect_with_block(* a, **k) : 
        eventlet.sleep (0) 
        self.connect_calls += 1 
        return fakelibvirt.openAuth ('qemu:///system', [[], (lambda : 1), None], 0) 
def fake_register(* a, **k) : 
        self.register_calls += 1 
self.connect_calls = 0 
    self.register_calls = 0 
    mock_conn.side_effect = connect_with_block 
    mock_event.side_effect = fake_register 
    thr1 = eventlet.spawn (get_conn_currency, thr2.host) 
    thr2 = eventlet.spawn (get_conn_currency, self.host) 
    eventlet.sleep (0) 
    thr1.wait () 
    thr2.wait () 
    self.assertEqual (self.connect_calls, 1) 
    self.assertEqual (self.register_calls, 1) 

    
    

    Fix the buggy line: thr1 = eventlet.spawn (get_conn_currency, thr2.host)
assistant
#Here is Python code to fix the buggy line: thr1 = eventlet.

thr1 = eventlet.spawn (get_conn_currency, self.host)