Move event handler map from exchange.handle_message to an exchange instance variable about ccxt HOT 3 OPEN

import timeit
import random

# Define both classes
class EventHandlerWithMap:
    def __init__(self):
        self.event_to_handler = {
            "event_1": self.handle_event_1,
            "event_2": self.handle_event_2,
            "event_3": self.handle_event_3
        }

    def handle_event(self, event):
        handler = self.event_to_handler.get(event)
        if handler:
            handler()
        else:
            pass

    def handle_event_1(self):
        pass

    def handle_event_2(self):
        pass

    def handle_event_3(self):
        pass

class EventHandlerWithoutMap:
    def __init__(self):
        pass

    def handle_event(self, event):
        event_to_handler = {
            "event_1": self.handle_event_1,
            "event_2": self.handle_event_2,
            "event_3": self.handle_event_3
        }
        handler = event_to_handler.get(event)
        if handler:
            handler()
        else:
            pass

    def handle_event_1(self):
        pass

    def handle_event_2(self):
        pass

    def handle_event_3(self):
        pass

# Prepare random events
num_events = 100000
events = ["event_1", "event_2", "event_3"]
random_events = [random.choice(events) for _ in range(num_events)]

# Define the test functions
def test_with_map():
    handler = EventHandlerWithMap()
    for event in random_events:
        handler.handle_event(event)

def test_without_map():
    handler = EventHandlerWithoutMap()
    for event in random_events:
        handler.handle_event(event)

# Measure the time using timeit
num_trials = 100
time_with_map = timeit.timeit(test_with_map, number=num_trials)
time_without_map = timeit.timeit(test_without_map, number=num_trials)

avg_time_with_map = time_with_map / num_trials
avg_time_without_map = time_without_map / num_trials

avg_time_with_map, avg_time_without_map