text: from bitcoin_tools.core.keys import serialize_pk, load_keys
  from bitcoin_tools.core.transaction import TX
  
  # BUILD TRANSACTIONS
  
  prev_tx_ids = ["f0315ffc38709d70ad5647e22048358dd3745f3ce3874223c80a7c92fab0c8ba",  # P2PK
                 "7767a9eb2c8adda3ffce86c06689007a903b6f7e78dbc049ef0dbaf9eeebe075",  # P2PKH
                 "adcd6d269d5e0713fa9650099e9ab54ebf845a0d95f3740b44361bdb287959a7"]  # P2MS
  prev_out_index = [0, 0, 0]
  btc_addrs = ["mgwpBW3g4diqasfxzWDgSi5fBrsFKmNdva", "mwryy9YdVezq2Wo1DukA5ADhrNemqCKTmy",
               "n4kDrXT6BuvgjjitGxLr4wepmeATWwvBJy"]
  value = [1000, 2000, 3000]
  pks = []
  sks = []
  
  # Just for testing
  fee_multiplier = 240
  fee = 235 * fee_multiplier
  value = 6083510 - fee
  
  for addr in btc_addrs:
      sk, pk = load_keys(addr)
      sks.append(sk)
      pks.append(pk)
  
  for i in range(3):
      if i is 0:
          print("\n#############\n# FROM P2PK #\n#############")
          sk = sks[i]
      elif i is 1:
          print("##############\n# FROM P2PKH #\n##############")
          sk = sks[i]
      elif i is 2:
          print("#############\n# FROM P2MS #\n#############")
          sk = sks[:i]
      for j in range(3):
          if j is 0:
              print("\nTO: P2PK\n")
              dest = serialize_pk(pks[j])
          elif j is 1:
              print("\nTO: P2PKH\n")
              dest = btc_addrs[j]
          elif j is 2:
              print("\nTO: P2MS\n")
              dest = [2, serialize_pk(pks[0]), serialize_pk(pks[1])]
  
          tx = TX.build_from_io(prev_tx_ids[i], prev_out_index[i], value, dest)
          tx.sign(sk, 0)
          print(tx.serialize())
          tx.display()
  
      print("\n---------------------------------------------------------------------------------------------\n")
  