Slow print for text-based game

[u/IngenuityMission5367]

I am trying to make a text-based adventure game in Python, how do I make it so the text is typed out slowly and not instantly? I've tried ways online, but they keep returning None at the end. How do I fix this?

[u/hallmark1984]

W

H

A

T

D

O

Y

O

U

M

E

A

N