human
Solve the following python programming problem given the following code:
def start(self, callback, timeout, repeat) : 
    '
        :type callback: Callable(timer_handle: Timer)
        :param float timeout: initial timeout (seconds) before first alarm
        :param float repeat: repeat interval (seconds).
0 to disable
        ' 
    timeout = int ((timeout * 1000)) 
    repeat = int ((repeat * 1000)) 
    def cb_wrapper(timer_h) : 
        callback (self) 
self._ffi_cb = ffi.callback ('void (*)(uv_timer_t *)', cb_wrapper) 
    libuv.uv_timer_start (self.handle, self._ffi_cb, callback, repeat) 

    
    

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

libuv.uv_timer_start (self.handle, self._ffi_cb, timeout, repeat)