// Fetch addresses from wallet using a single-unified API await bitcoin.wallet.getAddresses(0, 1) await ethereum.wallet.getAddresses(0, 1) // Sign a message const msg = 'The Times 3 January 2009 Chancellor on brink of second bailout for banks' await bitcoin.wallet.signMessage( msg, bitcoinAddress ) await ethereum.wallet.signMessage( msg, ethereumAddress ) // Send a transaction await bitcoin.chain.sendTransaction(<to>, 1000) await ethereum.chain.sendTransaction(<to>, 1000)