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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def sendfrom(self, user_id, dest_address, amount, minconf=1):
 """ Send coins from user's account. Args: user_id (str):
 this user's unique identifier dest_address (str):
 address which is to receive coins amount (str or Decimal):
 amount to send (eight decimal points) minconf (int):
 ensure the account has a valid balance using this many confirmations (default=1) Returns: str: transaction ID """

        amount = Decimal(amount).quantize(self.quantum, rounding=ROUND_HALF_EVEN)
        txhash = self.rpc.call("sendfrom",
            user_id, dest_address, float(str(amount)), minconf
        )
        self.logger.debug("Send %s %s from %s to %s" % (str(amount), self.coin,
                                                        str(user_id), dest_address))
        self.logger.debug("Transaction hash: %s" % txhash)
        return txhash