splitted transactions aswell from taskhelper
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223
goodchain/src/helpers/TransactionHelper.py
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223
goodchain/src/helpers/TransactionHelper.py
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from classes.Transaction import Tx
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from classes.TxBlock import TxBlock
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from helpers import UtilityHelper as utilityHelper
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from helpers import TaskHelper as taskHelper
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def transaction(self):
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receiver = input("Enter the username of the receiver:")
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if receiver == "":
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return False
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receiver_data = self.db.fetchUserByUsername(receiver)
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if not receiver_data:
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print("Username not found")
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return False
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if receiver_data[1] == self.user.public_ser:
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utilityHelper.clearScreen()
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print("You cant send money to yourself")
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return False
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amount = input("Enter the amount excluding fees:")
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if amount == "":
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return False
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try:
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amount = float(amount)
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except:
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print("Wrong input, try again")
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return False
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fee = input("Enter fee:")
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if fee == "":
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return False
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try:
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fee = float(fee)
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except:
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print("Wrong input, try again")
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return False
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utilityHelper.clearScreen()
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print(f"Processing transaction of {amount + fee} coins, {receiver} will receive {amount} coins")
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if amount + fee > taskHelper.getBalanceWithOutgoingPool(self, taskHelper.getBalance(self)):
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print("You dont have enough money")
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return False
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new_tx = Tx()
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new_tx.createTransaction(self.user.public_ser, self.user.private_ser, amount, fee, receiver_data[1])
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return new_tx
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def pendingTransactions(self):
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transactions = utilityHelper.loadFile("../data/transaction_pool.dat")
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total = 0
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total_amount = 0
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user_transactions = {}
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for transaction in transactions:
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# continue if transaction is a reward
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if transaction.type != 0:
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continue
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if transaction.inputs[0][0] == self.user.public_ser:
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total += 1
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print(f"---------------------------------------{total}-------------------------------------------")
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print(f"Transaction input: {transaction.inputs[0][1]}")
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print(f"Transaction output: {transaction.outputs[0][1]}")
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print(f"Transaction fees: {transaction.inputs[0][1] - transaction.outputs[0][1]}")
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print(f"Transaction sender: \n{transaction.inputs[0][0]}")
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print(f"Transaction recipient: \n{transaction.outputs[0][0]}")
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total_amount += transaction.inputs[0][1]
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user_transactions[total] = transaction
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if total == 0:
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print("No transactions found")
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return False
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print("-----------------------------------------------------------------------------------")
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print(f"Total transactions: {total}")
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print(f"Total spent: {total_amount}")
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print("-----------------------------------------------------------------------------------")
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print("0 -- Go back")
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print("1 -- Cancel/Modify transaction")
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choice = input(">>: ")
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match choice:
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case "0":
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utilityHelper.clearScreen()
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return
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case "1":
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print("Select a transaction to modify/cancel")
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user_input = input(">>: ")
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try:
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user_input = int(user_input)
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except:
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utilityHelper.clearScreen()
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print("Wrong input, try again")
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return
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if user_input > total or user_input < 1:
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utilityHelper.clearScreen()
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print("Wrong input, try again")
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return
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if user_transactions[user_input].type == 1:
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utilityHelper.clearScreen()
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print("You cant modify/cancel a reward transaction")
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return
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# print info of that transaction
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utilityHelper.clearScreen()
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print(f"---------------------------------------{str(user_input)}-------------------------------------------")
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print(f"Transaction input: {user_transactions.get(user_input).inputs[0][1]}")
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print(f"Transaction output: {user_transactions.get(user_input).outputs[0][1]}")
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print(f"Transaction fees: {user_transactions.get(user_input).inputs[0][1] - user_transactions.get(user_input).outputs[0][1]}")
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print(f"Transaction sender: \n{user_transactions.get(user_input).inputs[0][0]}")
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print(f"Transaction recipient: \n{user_transactions.get(user_input).outputs[0][0]}")
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print(f"---------------------------------------END-------------------------------------------")
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print("Modifying a transaction will bring you back in line, your transaction will lose the place in the pool.")
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print("0 -- Go back")
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print("1 -- Change amount")
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print("2 -- Change Recipient")
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print("3 -- Cancel transaction")
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choice = input(">>: ")
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match choice:
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case "0":
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utilityHelper.clearScreen()
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return
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case "1":
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utilityHelper.clearScreen()
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print("Enter a new amount")
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amount = input(">>: ")
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try:
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amount = float(amount)
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except:
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utilityHelper.clearScreen()
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print("Wrong input, try again")
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return
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print("Enter a new fee")
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fee = input(">>: ")
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try:
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fee = float(fee)
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except:
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utilityHelper.clearScreen()
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print("Wrong input, try again")
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return
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if amount + fee > taskHelper.getBalanceWithOutgoingPool(self, taskHelper.getBalance(self)):
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utilityHelper.clearScreen()
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print("You dont have enough money")
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print("Nothing happened to the old transaction")
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return False
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new_tx = Tx()
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new_tx.createTransaction(self.user.public_ser, self.user.private_ser, amount, fee, user_transactions[user_input].outputs[0][0])
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# remove old transaction from array
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transactions.remove(user_transactions[user_input])
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utilityHelper.resetFile("../data/transaction_pool.dat")
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# add old transactions to pool
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for transaction in transactions:
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utilityHelper.saveFile("../data/transaction_pool.dat", transaction)
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utilityHelper.saveFile("../data/transaction_pool.dat", new_tx)
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utilityHelper.clearScreen()
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print("Transaction modified")
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return
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case "2":
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print("Select a new recipient")
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recipient = input(">>: ")
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recipient_data = self.db.fetchUserByUsername(recipient)
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if not recipient_data:
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utilityHelper.clearScreen()
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print("Username not found")
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return False
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if recipient_data[1] == self.user.public_ser:
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utilityHelper.clearScreen()
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print("You cant send money to yourself")
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return False
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new_tx = Tx()
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new_tx.createTransaction(self.user.public_ser, self.user.private_ser, user_transactions[user_input].inputs[0][1], user_transactions[user_input].inputs[0][1] - user_transactions[user_input].outputs[0][1], recipient_data[1])
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# remove old transaction from array
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transactions.remove(user_transactions[user_input])
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utilityHelper.resetFile("../data/transaction_pool.dat")
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# add old transactions to pool
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for transaction in transactions:
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print(transaction)
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utilityHelper.saveFile("../data/transaction_pool.dat", transaction)
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utilityHelper.saveFile("../data/transaction_pool.dat", new_tx)
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utilityHelper.clearScreen()
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print("Transaction modified")
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return
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case "3":
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# remove old transaction from array
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transactions.remove(user_transactions[user_input])
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utilityHelper.resetFile("../data/transaction_pool.dat")
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# add old transactions to pool
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for transaction in transactions:
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utilityHelper.saveFile("../data/transaction_pool.dat", transaction)
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utilityHelper.clearScreen()
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print("Transaction cancelled")
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return
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case _:
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utilityHelper.clearScreen()
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print("Wrong input, try again")
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return
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case _:
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utilityHelper.clearScreen()
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print("Wrong input, try again")
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return
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