human
Solve the following python programming problem given the following code:
@ pytest.mark.parametrize (('encoder', 'decoder'), [(MsgPackEncoder, MsgPackDecoder), (JsonEncoder, JsonDecoder)]) 
def test_codec(encoder, decoder) : 
    def check_request(req1, req2) : 
        assert ((req1.url == req2.url) and (req1.meta == req2.meta) and (req1.headers == req2.headers)) 
enc = encoder (Request, send_body = True) 
    dec = decoder (Request, Response) 
    req = Request (url = 'http://www.yandex.ru', meta = { 
        'test' : 'shmest', 
}, headers = { 
        'reqhdr' : 'value', 
}) 
    req2 = Request (url = 'http://www.yandex.ru/search') 
    msgs = [enc.encode_add_seeds ([req]), enc.encode_page_crawled (Response (url = 'http://www.yandex.ru', body = 'SOME CONTENT', headers = { 
        'hdr' : 'value', 
}, request = req), [req2]), enc.encode_request_error (req, 'Host not found'), enc.encode_update_score ('1be68ff556fd0bbe5802d1a100850da29f7f15b1', 0.51, 'http://yandex.ru', True), enc.encode_new_job_id (1), enc.encode_offset (0, 28796), enc.encode_request (req)] 
    it = iter (msgs) 
    o = dec.decode (it.next ()) 
    assert (o [0] == 'add_seeds') 
    assert (type (o [1]) == list) 
    req_d = o [1] [0] 
    check_request (req_d, req) 
    assert (type (req_d) == Request) 
    o = dec.decode (it.next ()) 
    assert (o [0] == 'page_crawled') 
    assert (type (o [1]) == Response) 
    assert ((o [1].url == req.url) and (o [1].body == 'SOME CONTENT') and (o [1].meta == req.meta)) 
    assert (type (o [2]) == list) 
    req_d = o [2] [0] 
    assert (type (req_d) == Request) 
    assert (req_d.url == req2.url) 
    (o_type, o_req, o_error) = dec.decode (it.next ()) 
    assert (o_type == 'request_error') 
    check_request (o_req, o_type) 
    assert (o_error == 'Host not found') 
    (o_type, fprint, score, url, schedule) = dec.decode (it.next ()) 
    assert (o_type == 'update_score') 
    assert (fprint == '1be68ff556fd0bbe5802d1a100850da29f7f15b1') 
    assert (score == 0.51) 
    assert (url == 'http://yandex.ru') 
    assert (schedule is True) 
    (o_type, job_id) =...

    
    

    Fix the buggy line: check_request (o_req, o_type)
assistant
#Here is Python program to fix the buggy line: check_request (o_req, o_type)
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check_request (o_req, req)