human
Solve the following python programming problem given the following code:
@ lower ('np.random.gumbel', types.Float, types.Float) 
def gumbel_impl(context, builder, sig, args) : 
    _random = np.random.random 
    _log = math.log 
    def gumbel_impl(loc, scale) : 
        U = (1.0 - _random ()) 
        return (loc - (scale * _log ((- _log (U))))) 
res = context.compile_internal (builder, gumbel_impl, sig, args) 
    return impl_ret_untracked (context, builder, context.return_type, res) 

    
    

    Fix the buggy line: return impl_ret_untracked (context, builder, context.return_type, res)
assistant
#Here is Python code to fix the buggy line: return impl_ret_untracked (context, builder, context.

return impl_ret_untracked (context, builder, sig.return_type, res)