def transfer_bitcoin(self, transfer_spec, fees):
        return self.transfer([], transfer_spec, fees)
Pretty-print file size from bytes.
dataset/ETHPy150Open OpenAssets/openassets/openassets/transactions.py/TransactionBuilder.transfer_bitcoin--crossover with--dataset/ETHPy150Open j-bennet/wharfee/wharfee/helpers.py/filesize