input: 
  def create_basic_blockchain() -> Blockchain:
      """ Returns a basic blockchain system with the specified functionality.
      This function initializes a blockchain, creates some blocks with sample data,
      and returns the blockchain object.
  
      >>> blockchain = create_basic_blockchain()
      >>> blockchain.add_block({'timestamp': '2023-10-01T12:00:00', 'data': 'First block data'})
      >>> blockchain.add_block({'timestamp': '2023-10-01T13:00:00', 'data': 'Second block data'})
      >>> json_chain = blockchain.get_chain()
      >>> print(json_chain)
      """
  
output:     
      blockchain = Blockchain()
      blockchain.add_block({'timestamp': '2023-10-01T12:00:00', 'data': 'First block data'})
      blockchain.add_block({'timestamp': '2023-10-01T13:00:00', 'data': 'Second block data'})
      return blockchain
  