human
Solve the following python programming problem given the following code:
@ staticmethod 
def _stub_out(stubs, obj) : 
    orig_prepare = obj.prepare 
    def prepare(self, * args, **kwargs) : 
        if ('fanout' in kwargs) : 
            kwargs ['fanout'] = False 
cctxt = orig_prepare (self, * args, ** kwargs) 
        CastAsCall._stub_out (stubs, cctxt) 
        return cctxt 
stubs.Set (orig_prepare, 'prepare', prepare) 
    stubs.Set (obj, 'cast', obj.call) 

    
    

    Fix the buggy line: stubs.Set (orig_prepare, 'prepare', prepare)
assistant
#Here is Python code to fix the buggy line: stubs.

stubs.Set (obj, 'prepare', prepare)