from selenium import webdriver
from concurrent.futures import ThreadPoolExecutor

def browser_action(index):
driver = webdriver.Firefox()
driver.get("https://www.google.com")
print(f"Performing action {index}")
driver.quit()

def main():
with ThreadPoolExecutor(max_workers=2) as executor:
for i in range(100):
executor.submit(browser_action, i)

if __name__ == "__main__":
main()

kodunu incelerken parantez icinde (index) ve {index} var bunlarin burdaki kullanim amaci nedir