old_contents: from simblock.tools.api import API
  
  api = API()
  api.make_transaction()
  api.make_transaction()
  api.make_transaction()
  block = api.make_candidate_block()
  n = block.mine()
  print(n)
  
new_contents: from simblock.tools.api import API
  
  api = API()
  print("Chain Block hash:", api.chain.head.header.hash)
  print("Chain Block header:\n", dict(api.chain.head.header))
  
  for _ in range(100):
      api.make_transaction()
      api.make_transaction()
      api.make_transaction()
      api.mine()
      print("\n")
      print("#"*100)
      print("\n")
      print("Chain Block hash:", api.chain.head.header.hash)
      print("Chain Block header:\n", dict(api.chain.head.header))
      print("State root hash:\n", api.chain.state.root_hash)
  
subject: Update example