How to withdraw funds from ETH if there is an auto withdrawal in the wallet and I'm not the only one who has a private key? how can i create same code script or something familiar with this... i need it and i want to know how it works

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how to withdraw funds from ETH if there is an auto withdrawal in the wallet and I’m not the only one who has a private key? how can i create same code script or something familiar with this… i need it and i want to know how it works