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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 moveGamepadFocusToNeighbor(self, eDirection, ulFrom):
 """ Changes the Gamepad focus from one overlay to one of its neighbors. Returns VROverlayError_NoNeighbor if there is no neighbor in that direction """


        fn = self.function_table.moveGamepadFocusToNeighbor
        result = fn(eDirection, ulFrom)
        return result