is there any way to extend the chatterbot knowledge in python code example

Example 1: chatterbot python

from chatterbot.trainers import ListTrainer

trainer = ListTrainer(bot)

trainer.train([
    'How are you?',
    'I am good.',
    'That is good to hear.',
    'Thank you',
    'You are welcome.',
])

Example 2: chatterbot python

from chatterbot import ChatBot