code: def mrai_to_raw(self, amount):
          
  
          amount = self._process_value(amount, 'int')
  
          payload = {"amount": amount}
  
          resp = self.call('mrai_to_raw', payload)
  
          return int(resp['amount'])
docs: Multiply an Mrai amount by the Mrai ratio.
  
          :param amount: Amount in Mrai to convert to raw
          :type amount: int
  
          :raises: :py:exc:`nano.rpc.RPCException`
  
          >>> rpc.mrai_to_raw(amount=1)
          1000000000000000000000000000000