def is_monoasset(self):
        if not self.targets:
            raise InvalidTargetError('Basic txs is empty!')
        asset = self.targets[0].get_asset()
        for target in self.targets:
            if target.get_asset() != asset:
                return False
        return True
Returns a boolean representing if the transaction sends
dataset/ETHPy150Open chromaway/ngcccbase/ngcccbase/txcons.py/BasicTxSpec.is_monoasset