Can you show me the circuit for I2C level conversion part?

[heonchul]

Thanks for sharing a great project!
Your project is very fun and interesting!
So I want to make it too.
However, the circuit of the I2C level conversion board part is not clearly visible.
Can you show me the circuit for this part?
The basic framework is ready.

https://github.com/MhageGH/M5Stack_7SegMovie/blob/master/doc/level_conversion_board.jpg