subproviders/hooked-wallet.js
function cloneTxParams(txParams){
  return {
    from: txParams.from,
    to: txParams.to,
    value: txParams.value,
    data: txParams.data,
    gas: txParams.gas,
    gasPrice: txParams.gasPrice,
    nonce: txParams.nonce,
  }
}
function cloneTxParams(txParams){
  return {
    from: txParams.from,
    to: txParams.to,
    value: txParams.value,
    data: txParams.data,
    gas: txParams.gas,
    gasPrice: txParams.gasPrice,
    nonce: txParams.nonce,
  }
}
function cloneTxParams ( txParams ) { return { from : txParams . from , to : txParams . to , value : txParams . value , data : txParams . data , gas : txParams . gas , gasPrice : txParams . gasPrice , nonce : txParams . nonce , } }
util we use this to clean any custom params from the txParams
util we use this to clean any custom params from the txParams