human
Solve the following python programming problem given the following code:
def __repr__(self) : 
    def to_bin(x, s) : 
        return bin (x) [2 :].zfill (s) [: : (- 1)] 
(index, offset) = self._get_offset (offset.size) 
    rep = [to_bin (x, BYTE_SIZE) for x in self.array [: index]] 
    if offset : 
        rep.append (to_bin ((self.array [index] & ((1 << offset) - 1)), offset)) 
return ''.join (rep) 

    
    

    Fix the buggy line: (index, offset) = self._get_offset (offset.size)
assistant
#Here is Python program to fix the buggy line: (index, offset) = self.

(index, offset) = self._get_offset (self.size)