human
Solve the following python programming problem given the following code:
def start(self, events, callback) : 
    'Start the poll listener

        :param events: UV_READABLE | UV_WRITEABLE
        :param callback: Callable(poll_handle: Poll, status: int, events: int)
        ' 
    def cb_wrapper(uv_poll_t, status, events) : 
        callback (self, status, events) 
self._ffi_cb = ffi.callback ('void (*)(uv_poll_t *, int, int)', cb_wrapper) 
    libuv.uv_poll_start (self.handle, events, events._ffi_cb) 

    
    

    Fix the buggy line: libuv.uv_poll_start (self.handle, events, events._ffi_cb)
assistant
#Here is Python program to fix the buggy line: libuv.

libuv.uv_poll_start (self.handle, events, self._ffi_cb)