python code please, do not copy other answer on chegg

3c) Write a function that returns the relative rounding error for a given input value: def err_rel(x, a): error in rounding a number x to the nearest element of an array a Args: x: input numeric value a: numpy array of numerical values Returns: distance from x to closest element of a # YOUR CODE HERE raise Not ImplementedError() return err npt. assert_almost_equal (err_rel (0.8, a), 0. 05/0.8)