minor fixes , changed tuple so that its compatible with early versions as well

Author: idklol22

machine_learning/q_learning.py

@@ -10,9 +10,10 @@
 
 import random
 from collections import defaultdict
+from typing import Tuple
 
 # Type alias for state
-type State = tuple[int, int]
+type State = Tuple[int, int]
 
 # Hyperparameters for Q-Learning
 LEARNING_RATE = 0.1