nl_tokens: Generate a change address from a Mnemonic of a private key .
pl_tokens: function changeAddrFromMnemonic ( walletInfo , index , BITBOX ) { // root seed buffer const rootSeed = BITBOX . Mnemonic . toSeed ( walletInfo . mnemonic ) // master HDNode if ( walletInfo . network === "testnet" ) var masterHDNode = BITBOX . HDNode . fromSeed ( rootSeed , "testnet" ) else var masterHDNode = BITBOX . HDNode . fromSeed ( rootSeed ) // HDNode of BIP44 account const account = BITBOX . HDNode . derivePath ( masterHDNode , "m/44'/145'/0'" ) // derive the first external change address HDNode which is going to spend utxo const change = BITBOX . HDNode . derivePath ( account , ` ${ index } ` ) return <mask> }