human
Solve the following python programming problem given the following code:
def test_index_multiple_slices() : 
    A = npr.randn (7) 
    def fun(x) : 
        y = x [2 : 6] 
        z = y [1 : 3] 
        return to_scalar (z) 
d_fun = (lambda x : to_scalar (grad (fun) (x))) 
    check_grads (fun, fun) 
    check_grads (d_fun, A) 

    
    

    Fix the buggy line: check_grads (fun, fun)
assistant
#Here is Python code to fix the buggy line: check_grads (fun, fun)
.

check_grads (fun, A)