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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 gradient_component(self, index1):
 """Compute the gradient of the energy for one atom"""

        result = np.zeros(3, float)
        for index2 in range(self.numc):
            if self.scaling[index1, index2] > 0:
                for (se, ve), (sg, vg) in zip(self.yield_pair_energies(index1, index2), self.yield_pair_gradients(index1, index2)):
                    result += (sg*self.directions[index1, index2]*ve + se*vg)*self.scaling[index1, index2]
        return result