@property
    def index(self):
        return self._index
Sets the callback to run when the given settings key changes.
dataset/ETHPy150Open programa-stic/barf-project/barf/barf/arch/x86/x86base.py/X86MemoryOperand.index--crossover with--dataset/ETHPy150Open Varriount/NimLime/nimlime_core/settings.py/add_on_change