Hi guys long story short I have a list of data structure that looks like this

Class Event:
   start: datetime
   end: datetime

Take a list[Event], I want to produce a new list that have two entries for each original Event:

event_a = Event(start=2024-06-14, end=2024-06-15)
event_b = Event(start=2024-07-14, end=2024-07-15)

input_list = [event_a, event_b]

# construct new list here
def construct(input_list: list[Event]) -> list[datetime]:
   ...

output_list = construct(input_list)

# expected output is
# [2024-06-14, 2024-06-15, 2024-07-14, 2024-07-15]

I know I can do it with list comprehension and I’m wondering can I do it efficiently with a map, I’ve tried

output_list = map(lambda x: (x.start, x.end), input_list)

but this returns

[(2024-06-14, 2024-06-15), (2024-07-14, 2024-07-15)]

Is there a way I can tweak the map lambda that directly return a flatten list instead?

Thank you all!