code: def send(self, to, amount, from_address=None, fee=None):
          
          
          recipient = {to: amount}
          return self.send_many(recipient, from_address, fee)
docs: Send bitcoin from your wallet to a single address.
  
          :param str to: recipient bitcoin address
          :param int amount: amount to send (in satoshi)
          :param str from_address: specific address to send from (optional)
          :param int fee: transaction fee in satoshi. Must be greater than the default
                          fee (optional).
          :return: an instance of :class:`PaymentResponse` class