input: 
  def create_simple_chatbot() -> None:
      """
      Create a simple chatbot using state diagrams. The chatbot will initialize with a 'state0' message,
      interact with the user based on their input, and transition between states accordingly. If the bot
      cannot understand the user's input, it will prompt them to try again. The conversation ends when
      the bot reaches a terminal state with no replies.
      
      >>> create_simple_chatbot()
      Hello! How can I help you?
      >> I need some advice
      Sure, what kind of advice do you need?
      >> Career advice
      It is always a good idea to research the field you are interested in and creating a plan to learn the skills that are required. Make sure to contact professionals in the field to understand their experience.
      Goodbye!
      =================
      Conversation:
      Hello! How can I help you?
      I need some advice
      Sure, what kind of advice do you need?
      Career advice
      It is always a good idea to research the field you are interested in and creating a plan to learn the skills that are required. Make sure to contact professionals in the field to understand their experience.
      """
      # Create the states
      state0 = {
          'name': 'state0',
          'message': 'Hello! How can I help you?',
          'replies': {'I need some advice': 'state1', 'Can you answer my questions?': 'state2'}
      }
  
      state1 = {
          'name': 'state1',
          'message': 'Sure, what kind of advice do you need?',
          'replies': {'Career advice': 'state3','Health advice': 'state4'}
      }
  
      state2 = {
          'name': 'state2',
          'message': 'Yes, I\'ll do my best! What do you want to know?',
          'replies': {'Where can I find good tutorials': 'state5', 'Why is coding so hard': 'state6'}
      }
  
      state3 = {
          'name': 'state3',
          'message': 'It is always a good idea to research the field you are interested in and creating a plan to learn the skills that are required. Make sure to contact professionals in the field to understand their experience.',
          'replies': {}
      }
  
      state4 = {
          'name': 'state4',
          'message': 'Focus on eating healthy and staying active. Make sure to consult a medical professional if you have any concerns.',
          'replies': {}
      }
  
      state5 = {
          'name': 'state5',
          'message': 'You can find tutorials online or join coding communities to get help from experienced coders. StackOverflow and Code Academy are great resources.',
          'replies': {}
      }
  
      state6 = {
          'name': 'state6',
          'message': 'Coding can be challenging, especially at first. Just remember that with practice, patience and problem solving skills you can overcome the obstacles.',
          'replies': {}
      }
  
      # Initialize the state
      current_state = state0
  
      # Keep a record of conversation
      conversation = []
  
      while True:
          # Print the current state message
          print(current_state['message'])
          conversation.append(current_state['message'])
  
          # Get the user input
          user_input = input('>> ')
          conversation.append(user_input)
  
          # Update the state
          if user_input in current_state['replies']:
              current_state = eval(current_state['replies'][user_input])
          else:
              print("I don't understand what you mean. Please try again.")
  
          # End the conversation when the state is terminal
          if not bool(current_state['replies']):
              print('Goodbye!')
              break
  
      print("=========================")
      print("Conversation:")
      for message in conversation:
          print(message)
  
output:     # Create the states
      state0 = {
          'name': 'state0',
          'message': 'Hello! How can I help you?',
          'replies': {'I need some advice': 'state1', 'Can you answer my questions?': 'state2'}
      }
  
      state1 = {
          'name': 'state1',
          'message': 'Sure, what kind of advice do you need?',
          'replies': {'Career advice': 'state3','Health advice': 'state4'}
      }
  
      state2 = {
          'name': 'state2',
          'message': 'Yes, I\'ll do my best! What do you want to know?',
          'replies': {'Where can I find good tutorials': 'state5', 'Why is coding so hard': 'state6'}
      }
  
      state3 = {
          'name': 'state3',
          'message': 'It is always a good idea to research the field you are interested in and creating a plan to learn the skills that are required. Make sure to contact professionals in the field to understand their experience.',
          'replies': {}
      }
  
      state4 = {
          'name': 'state4',
          'message': 'Focus on eating healthy and staying active. Make sure to consult a medical professional if you have any concerns.',
          'replies': {}
      }
  
      state5 = {
          'name': 'state5',
          'message': 'You can find tutorials online or join coding communities to get help from experienced coders. StackOverflow and Code Academy are great resources.',
          'replies': {}
      }
  
      state6 = {
          'name': 'state6',
          'message': 'Coding can be challenging, especially at first. Just remember that with practice, patience and problem solving skills you can overcome the obstacles.',
          'replies': {}
      }
  
      # Initialize the state
      current_state = state0
  
      # Keep a record of conversation
      conversation = []
  
      while True:
          # Print the current state message
          print(current_state['message'])
          conversation.append(current_state['message'])
  
          # Get the user input
          user_input = input('>> ')
          conversation.append(user_input)
  
          # Update the state
          if user_input in current_state['replies']:
              current_state = eval(current_state['replies'][user_input])
          else:
              print("I don't understand what you mean. Please try again.")
  
          # End the conversation when the state is terminal
          if not bool(current_state['replies']):
              print('Goodbye!')
              break
  
      print("=========================")
      print("Conversation:")
      for message in conversation:
          print(message)