human
Solve the following python programming problem given the following code:
def lanczos(coords, shape, window = 3, **kwargs) : 
    def lanczos(x) : 
        out = np.zeros_like (x) 
        sel = (np.abs (x) < window) 
        selx = x [sel] 
        out [sel] = ((np.sin ((np.pi * selx)) * np.sin (((np.pi * selx) / window))) * (window / ((np.pi ** 2) * (selx ** 2)))) 
        return out 
return distance_func (shape, coords, shape, ** kwargs) 

    
    

    Fix the buggy line: return distance_func (shape, coords, shape, ** kwargs)
assistant
#Here is Python program to fix the buggy line: return distance_func (shape, coords, shape, ** kwargs)
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return distance_func (def lanczos(, coords, shape, ** kwargs)