Using python cache

cache.py

import time
from functools import lru_cache

@lru_cache()
def task(a,b):
    print('Init task')
    time.sleep(2)  
    return a + b
  
task.cache_clear()
start = time.time()
print(task(10,10))
print(task(10,10))
print(task(10,15))
print(task(10,10))
print(task(10,10))
print(task(10,10))
print(task(10,15))
print(f'total time {time.time() - start}')
print(task.cache_info())