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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def GaussSeidelStep(self, S, X, ATYU, rho, lcw, W2):
 """Gauss-Seidel step for linear system in TV problem."""


        Xss = np.zeros_like(S, dtype=self.dtype)
        for ax in self.axes:
            Xss += sl.zpad(X[(slice(None),)*ax + (slice(0, -1),)],
                           (1, 0), ax)
            Xss += sl.zpad(X[(slice(None),)*ax + (slice(1, None),)],
                           (0, 1), ax)
        return (rho*(Xss + ATYU) + W2*S) / (W2 + rho*lcw)