old_contents: import shutil
  
  from storage.database import Database
  
  if __name__ == '__main__':
      blockchain_database = Database('/home/leo/PycharmProjects/CrAB/db')
  
      hash, header, data = blockchain_database.put_block(('vasl1', 'val2', 'val3', 'vqwe'))
      print('hello workd')
      print(hash)
      print(blockchain_database.get_block(hash, True))
  
      # shutil.rmtree('/home/leo/PycharmProjects/CrAB/db')
new_contents: if __name__ == '__main__':
      print('hello blockchain')
subject: Simplify main cos its useless for now