human
Solve the following python programming problem given the following code:
def __init__(self, callback) : 
    _CallbackExceptionHelper.__init__ (self) 
    @ wraps (callback) 
    def wrapper(ok, store_ctx) : 
        cert = X509.__new__ (X509) 
        cert._x509 = _lib.X509_STORE_CTX_get_current_cert (store_ctx) 
        error_number = _lib.X509_STORE_CTX_get_error (store_ctx) 
        error_depth = _lib.X509_STORE_CTX_get_error_depth (store_ctx) 
        index = _lib.SSL_get_ex_data_X509_STORE_CTX_idx () 
        ssl = _lib.X509_STORE_CTX_get_ex_data (store_ctx, index) 
        connection = Connection._reverse_mapping [ssl] 
        try : 
            result = callback (connection, cert, error_number, error_depth, ok) 
except Exception as e : 
            self._problems.append (e) 
            return 0 
else : 
            if result : 
                _lib.X509_STORE_CTX_set_error (store_ctx, _lib.X509_V_OK) 
                return 1 
else : 
                return 0 
self.callback = _ffi.callback ('int (*)(int, X509_STORE_CTX *)', self) 

    
    

    Fix the buggy line: self.callback = _ffi.callback ('int (*)(int, X509_STORE_CTX *)', self)
assistant
#Here is Python program to fix the buggy line: self.

self.callback = _ffi.callback ('int (*)(int, X509_STORE_CTX *)', def wrapper()