constnewYTtoken="KT1..."; // or new BigNumber(0) or "0"constproxy=awaittezos.contract.at(proxyAddress);constoperation=awaityupana.methods.updateYToken(newYTtoken).send();awaitoperation.confirmation();
new_ytoken ="KT1..."proxy = ContractInterface.from_michelson(code)# or client.contract(contract_address)...call = proxy.updateYToken(new_ytoken)opg = call.inject()